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Diffstat (limited to 'pkg/images/Revisions')
| -rw-r--r-- | pkg/images/Revisions | 3680 |
1 files changed, 3680 insertions, 0 deletions
diff --git a/pkg/images/Revisions b/pkg/images/Revisions new file mode 100644 index 00000000..f0f2e070 --- /dev/null +++ b/pkg/images/Revisions @@ -0,0 +1,3680 @@ +.help revisions Jan97 images +.nf + +imfit/src/imsurfit.x + The 'fbuf' and 'colsfit' pointers were declared with the wrong type. + (5/4/13, MJF) + +tv/imedit/epstatistics.x + The 'x', 'y', and 'z' pointers were declared as TY_INT instead of TY_REAL + (5/4/13, MJF) + +immatch/src/linmatch/rgltools.x + There were TY_INT arrays being called with Memr[] (4/20/13) + +imcoords/src/t_ccmap.x + There were missing arguments that will cause "refpoint=user" to crash + with a floating point overflow. (9/21/12, Valdes) + +imatch/src/imcombine/src/icombine.x + Removed TRAP debug message. (5/11/12, Valdes) + +imatch/src/imcombine/src/icsetout.x + Changed 1 Gpixel limit (see 6/11/09) to 100 Gpixel. (5/11/12, Valdes) + +immatch/src/geometry/t_geomap.gx +lib/geofit.gx + The real path of t_geomap.gx code treated geomap.h floating parameters + as being of type PIXEL rather than double. Also in the real path + of geofit.gx there was an attempt to coerce an INDEFD to a real value. + (5/10/12, Valdes) + +imcoords/src/t_ccmap.x +imcoords/ccmap.par +lib/geofit.x +lib/geogmap.gx + Updates to the previous changes. A new option "tweak" was added to + the values for the "refpoint" parameter to allow controlling whether + to tweak the input tangent point. (3/16/12, Valdes) + +imcoords/src/t_ccmap.x +imcoords/ccmap.par +imcoords/doc/ccmap.hlp + Changes to allow constraining WCS solutions to specified tangent point + parameters (reference pixel and reference coordinate). + + 1. New parameters xref and yref can be set to a value or header keyword + in order to constrain the solution to the specified reference pixel. + + This adds parameters so potentially requires users to update scripts. + + (2/7/12, Valdes) + +lib/geoset.x + +lib/mkpkg +lib/geofit.x +lib/geomap.h +lib/geofit.gx + These changes are to allow calling gsurfit with the fit constrained + to a specific reference point and value. This is used by ccmap to + constrain WCS solutions to specified CRVAL/CRPIX values. + + 1. Added geoset procedures to set some new parameters. + 2. The new parameters are passed on to gsurfit. + + These changes should be transparent to any existing usage. These + chanages are coupled to changes in gsurfit. + + (2/7/12, Valdes) + + +===== +v2.16 +===== + +immatch/imcombine.par + The enumerated values for the combine value had to be expanded to + agree with the help page and the task functionality. (Valdes, 12-16-11) + +imgeom/doc/imlintran.hlp + Corrected the description of the image scaling to remove extra + terms (i.e. "xt = xt/xmag + yt/ymag" becomes "xt = xt/xmag") (12/16/11) + +imcoords/src/t_ccmap.x +imcoords/doc/ccmap.hlp + Modifications to allow using multiple exposures to produce one + solution. This was done in such a way that no new parameters are + needed. (8/9/11, Valdes) + +immatch/src/imcombine/src/icgdata.gx + The image id data was not properly initialized when some data was + excluded causing a segmentation fault with the grow option is used + with masks or non-overlapping data. (4/1/11, Valdes) + +immatch/src/imcombine/mkpkg + The "standalone" target was not correct for the imc library changes. + (4/1/11, Valdes) + +immatch/src/imcombine/src/icomb.gx + A feature to reduced memory requirments by removing the user area of + the image header structure is a problem when masks and wcs offsets are + used due to the need for the mask matching code to access the wcs. For + now this feature is turned off. (3/4/11, Valdes) + +======== +V2.15.1a +======== + +immatch/src/imcombine/src/icaclip.gx +immatch/src/imcombine/src/iccclip.gx +immatch/src/imcombine/src/icmm.gx +immatch/src/imcombine/src/icpclip.gx +immatch/src/imcombine/src/icsclip.gx + The change that allowed the array containing the number of good pixels + to be negative was not taken into account in these routines. While I + did not fully check the logic the simple step of applying a floor of + zero to the array values should be safe since these routines were + originally written to expect values from 0 on up. (1/10/11, Valdes) + +immatch/src/imcombine/src/generic/mkpkg +immatch/src/imcombine/src/mkpkg +immatch/src/imcombine/mkpkg +mkpkg + Converted the generic combining code into a core library so that + other versions of combine (such as in ccdred, mscred, nfextern) + will share the same code rather than have copies. (1/4/11, Valdes) + +immatch/src/imcombine/src/ichdr.x + Accidentally left a debugging statement that printed the letter C. + This is now removed. (12/10/10, Valdes) + +immatch/src/imcombine/src/ichdr.x + The step that stripped any directory from the image name for the $I + value of the imcmb parameter failed for extensions. (11/17/10, Valdes) + +immatch/doc/imcombine.hlp +immatch/src/imcombine/imcombine.par +immatch/src/imcombine/src/generic/mkpkg +immatch/src/imcombine/src/icaverage.gx +immatch/src/imcombine/src/iclog.x +immatch/src/imcombine/src/icnmodel.gx + +immatch/src/imcombine/src/icomb.gx +immatch/src/imcombine/src/icombine.h +immatch/src/imcombine/src/icquad.gx + +immatch/src/imcombine/src/mkpkg + Added two combine options -- "quadrature" and "nmodel". This allows + sigma images to be input and output. (4/21/10, Valdes) + +immatch/src/imcombine/t_imcombine.x +immatch/imcombine.par +immatch/src/imcombine/imcombine.par +immatch/src/imcombine/src/generic/icmedian.x +immatch/src/imcombine/src/icmedian.gx +immatch/src/imcombine/src/icombine.com +immatch/src/imcombine/src/icombine.h +immatch/doc/imcombine.hlp + Added a specialized "lmedian" option to use the lower value when there + are only two values contributing to the output. (4/12/10, Valdes) + +images/imcoords/src/t_hpctran.x +images/imcoords/src/healpix.x +images/imcoords/src/mkpkg +images/imcoords/doc/hpctran.hlp +images/imcoords/hpctran.par +images/imcoords/imcoords.cl +images/imcoords/imcoords.hd +images/imcoords/imcoords.men +images/x_images.x + A new task to convert between HEALPix row and spherical coordinates. + Data access to a HEALPix FITS binary table can be done with the + TABLES package but being able to compute the row from a coordinate + was needed. (7/28/09, Valdes) + +images/immatch/src/imcombine/src/icombine.x + The earlier change 10/22/08 that closes the masks between each line + had an error that instead of doing this only after trying without + closing the masks it was doing it every time. + (7/21/09, Valdes) + +images/immatch/src/imcombine/src/icomb.gx + The data buffers were not initialized after a salloc which could + cause a arithmetic error when doing offset images. This came up + with mergeamps. (7/9/09, Valdes) + +images/immatch/src/imcombine/src/icsetout.x + To protect against wild errors in the offsets (usually from a problem + with the WCS) for making a stack a warning error occurs if the output + size exceeds 1Gpixels when offsets used. (6/11/09, Valdes) + +images/imcoords/src/t_ccsetwcs.x + The behavior described in the help when there is more than one image and + only one solution specified does not agree with the code. I changed the + code to agree with the help. (5/21/09, Valdes) + +images/imutil/src/nhedit.x +images/imutil/src/getcmd.x +images/imutil/nhedit.par +images/imutil/doc/nhedit.hlp + A "rename" parameter switch was added for renaming a keyword. The + value field is the new keyword name. (2/25/09, Valdes) + +images/immatch/src/imcombine/src/icombine.x + If the input images have "[0]" and the output is to list only then + the extension is stripped. This is to allow a grouping task to + output the parent images of mefs. (1/20/09, Valdes) + +images/immatch/src/imcombine/src/icgdata.gx + When keepids=yes (such as with weighting) and using the "novalue" masktype + the id array was not set causing errors in icaverage. + (1/5/09, Valdes) + +images/imutil/src/hedit.x + Fixed a problem in the he_gval() procedure in which the use of '$' + in a field name was causing the imgstr to always fail. Added a check + so the field name is queried witout the leading '$' (1/2/09, MJF) + +pkg/xtools/imfilter/src/runmed.x + Modified because of an argument change in an xtools/rmmed.x routine. + There was not functional change. (10/29/08, Valdes) + +images/immatch/src/imcombine/src/icemask.x +images/immatch/src/imcombine/src/icomb.gx +images/immatch/src/imcombine/src/icombine.x +images/immatch/src/imcombine/src/icsetout.x +images/immatch/src/imcombine/src/xtimmap.gx +images/immatch/src/imcombine/src/imcombine.h +images/immatch/src/imcombine/src/generic/xtimmap.com + More changes to optimize large number of image and memory behavior. + (10/23/08, Valdes) + +images/immatch/src/imcombine/src/xtimmap.gx + Debugging statements were added controled by an define at the top. + This allows watching when images are mapped and unmapped. + (10/22/08, Valdes) + +images/immatch/src/imcombine/src/icmask.x +images/immatch/src/imcombine/src/icmask.h +images/immatch/src/imcombine/src/icombine.x + If memory runs out not only is the image buffer size reduced but the + pixel masks (if used) are closed after each access. This may be + rather inefficient but was the simplest way to handle the fact that + masks are stored in memory and can't easily be buffered in line + blocks. (10/22/08, Valdes) + +images/immatch/src/imcombine/src/icaclip.gx + When too many pixels are rejected the operation of adding back some + pixels would clobber the sigma value; i.e. reuse of a variable still + in use. (10/13/08, Valdes) + +images/immatch/src/imcombine/src/icaclip.gx +images/immatch/src/imcombine/src/iccclip.gx +images/immatch/src/imcombine/src/icsclip.gx + When clipping about the median from below the rejection could + terminate early, because the wrong variable was used, resulting in + an incorrect value. I believe this will only be a problem when the + sigma factor is very small. (10/07/08, Valdes) + +======= +V2.14.1 +======= + +images/x_images.x +images/imutil/imutil.cl +images/imutil/imutil.hd +images/imutil/imutil.men +images/imutil/nhedit.par + +images/imutil/doc/nhedit.hlp + +images/imutil/src/nhedit.x + +images/imutil/src/getcmd.x + +images/imutil/src/mkpkg + Installed the NHEDIT task (HEDIT with comments) (8/19/08, MJF) + +images/immatch/doc/geomap.hlp +images/immatch/doc/geotran.hlp + Fixed some typos in the doc. (8/13/08, MJF) + +images$imutil/src/imexpr.gx + Quoted strings in the expression database were not being handle + correction. Specifically, the quotes were stripped and single + quotes were being parsed as character constants. + (8/12/08, Valdes) + +images$immatch/src/imcombine/src/ichdr.x + The PROCID keywords have not proven to be very meaningful. In the + interests of backwards compatibility, if imcmb=$I these keywords are + still written but otherwise they are not. + (7/23/08, Valdes) + +images$immatch/src/imcombine/src/ichdr.x +images$immatch/src/imcombine/imcombine.par +images$immatch/imcombine.par +images$immatch/doc/imcombine.hlp + A new parameter "imcmb" was added to control the value written to the + IMCMBnnn keywords in the output image. The value is a keyword in the + input images to be copied to the output IMCMBnnn keywords. The default + parameter value, "$I", is the basename input image name as before. + (7/22/08, Valdes) + +images$imutil/src/t_imstat.x + The clipping calculation was resetting the user supplied pixel limits. + Instead, any clipping limits need to remain bounded by the user + limits. + (7/15/08, Valdes) + +images$imfilter/runmed.par +images$imfilter/doc/runmed +images$imfilter/src/t_runmed.x +images$imfilter/src/runmed.x +images$imfilter/src/rmmed.x - + 1. rmmed.x was moved to xtools. + 2. A new parameter, nclip, was added to allow clipping of high values + from the running median. + (2/29/08, Valdes) + +images$immatch/src/imcombine/t_imcombine.x +images$tv/imexamine/ievimexam.x + Fixed some procedure calls closed with a ']' instead of ')' (02/17/08, MJF) + +images$immatch/src/imcombine/src/icmask.x +images$immatch/src/imcombine/src/icgdata.gx +images$immatch/src/imcombine/src/icaverage.gx +images$immatch/src/imcombine/src/iclog.x +images$immatch/src/imcombine/src/icmedian.gx +images$immatch/src/imcombine/src/icomb.gx +images$immatch/src/imcombine/src/icombine.h + 1. Added a new "masktype" option called "novalue". This uses 0 for + good pixels, "maskvalue" for pixels with no data, and any other value + for bad pixels. When there is no overlapping good data the blank + value is used if all the pixels are no data and otherwise the + image pixel values are combined as if good. The output mask will + have 0 for good, 1 for no data, and 2 for data based on bad data. + 2. The "masktype" option can now be "!<keyword> <type>" to specify + both a keyword for the mask and any mask type method. + (2/11/08, Valdes) + +images$imcoords/src/t_ccfind.x + When using a ZPN projection, the transform code in mwcs tries to + reference the parent image to get the PV matrix keywords. This task + called sk_decwcs() to open the WCS, but for an image it then unmapped + the image. When the task later uses the 'mw' pointer to transform coords + the ZPN reference to the parent image is invalid and results in a + segfault. Changed the code to call sk_decim() directly and operate on + the currently open image instead. (1/23/08, MJF) + +images$imcoords/src/t_ccmap.x +images$immatch/src/psfmatch/rgpsfm.x +images$imutil/src/t_imtile.x +images$tv/imexamine/t_imexam.x + Fixed various type declaration problems (1/21/08, MJF) + +images$immatch/src/imcombine/icmask.x + Changes to support the pmmap features of mask matching. (1/21/08, Valdes) + +images$immatch/src/imcombine/src/ichdr.x + When recording the images combined only the basename is now used. + (1/21/08, Valdes) + +images$immatch/src/imcombine/src/icombine.x +images$immatch/src/imcombine/t_imcombine.x + Added a listonly argument. This is not currently used by IMCOMBINE but + is used in other packages sharing this library. (1/21/08, Valdes) + +images/lib/rgtransform.x +image/immatch/src/listmatch/t_xyxymatch.x + Changed the name of the rg_intersect() function to rg_intersection() + to avoid a possible conflict with an xtools procedure of the same + name. (1/16/08, MJF) + +images$tv/imed.par + Added entries for missing minvalue/maxvalue params (1/14/08, MJF) + +images$immatch/src/geometry/t_geomap.gx + Changed the output precision of the rotation angles from 3 to 5 + decimal places. (1/14/08, MJF) + +images$imfilter/src/runmed.x + Modified to use yt_mappm for the input mask. The default is still to + work in logical coordinates but now the user can set "pmmatch=world" + to match masks in world coordinates to efficiently implement the + dimsum approach to second pass sky subtraction. + (1/9/08, Valdes) + +===== +V2.14 +===== +images$imfilter/src/rmmed.x + A data structure was allocated with a wrong length (too short) resulting + in the possiblity of a segmentation violation. (1/18/07, Valdes) + +images$immmatch/src/imcombine/src/icgdata.gx + The optimization for large numbers of offset images which don't + overlap (such as a strip of exposures) caused problems with + offsets on 3D images. The optimization was made to apply only + with 1D or 2D output images. (10/20/06, Valdes) + +images$immmatch/src/imcombine/src/icomb.gx + The addition of the sum option failed to add a case for selecting how + to set the keepids flag. Add SUM to the switch on line 229. + (2/28/06, Fitzpatrick, Valdes) + +images$imcoords/src/mkcwcs.cl + I can't remember if there was a reason for the first two hedit calls. + But if a new image is being created these calls cause a warning error. + The safest way to address this without remember if there is a reason + for the statements is to put them inside a block that is executed only + if the image exists. (1/27/06, Valdes) + +images$imcoords/src/mkcwcs.cl + +images$imcoords/src/mkcwwcs.cl + +images$imcoords/doc/mkcwcs.hlp + +images$imcoords/doc/mkcwwcs.hlp + +images$imcoords/imcoords.cl +images$imcoords/imcoords.men +images$imcoords/imcoords.hd + Two new tasks were added to create or modify simple and standard + celestial and celestial/wavelength WCS. The parameters are designed + to make it simpler for a user to specify WCS information in a + natural way without understanding the details of the WCS structure. + The tasks may be used to make data-less WCS for templates or to + add or update a WCS in an image. These scripts depend on the + changes to WCSCOPY and WCSEDIT which are the underlying interfaces + to the WCS. + (6/24/05, Valdes) + +images$imcoords/src/t_wcsedit.x +images$imcoords/wcsedit.par +images$imcoords/doc/wcsedit.hlp + Modified to allow a new data-less WCS header to be created of + dimensionality given by the new parameter "wcsdim". + (6/23/05, Valdes) + +images$immatch/src/wcsmatch/t_wcscopy.x +images$immatch/doc/wcscopy.hlp + Modified to allow creation of a new data-less WCS header. Also checking + on image sizes and dimensionality was commented out. + (6/23/05, Valdes) + +======= +V2.12.3 +======= + +images$imfilter/src/t_runmed.x +images$imfilter/src/runmed.x +images$imfilter/src/rm_med.x +images$imfilter/src/mkpkg +images$imfilter/runmed.par +images$imfilter/doc/runmed.hlp +images$imfilter/imfilter.cl +images$imfilter/imfilter.hd +images$imfilter/imfilter.men +images$x_images.x + Installed new running median task. (5/6/05, Valdes) + +images$imcoords/src/t_ccsetwcs.x + The option to specify a list of images with a single plate solution + record, as described in the help, was not working. This was fixed. + (10/8/04, Valdes) + +images$immatch/src/wcsmatch/t_wcscopy.x + Removed a check that would not allow dataless WCS to be copied. + (8/25/04, Cooke & Valdes) + +images$imutil/src/imgets.x + Modified so that strings with double quotes can be accessed. + (7/27/04, Valdes) + +images$immatch/src/imcombine/src/icmask.x +images$immatch/src/imcombine/src/iclog.x +images$immatch/src/imcombine/src/imcombine.h +images$immatch/src/imcombine/imcombine.par +images$immatch/imcombine.par + As a special unadvertised feature the "maskvalue" parameter may be + specified with a leading '<' or '>'. Ultimately a full expression + should be added and documented. (7/26/04, Valdes) + +images$immatch/src/imcombine/src/icmask.x +images$immatch/src/imcombine/src/Revisions + + Added a feature to allow masks specified without a path to be found + either in the current directory or the directory with the image. This + is useful when images to be combined are distributed across multiple + directories. (7/16/04, Valdes) + +======== +V2.12.2a +======== + +images$immatach/src/imcombine/src/icgdata.gx + Offset one-dimensional images do not combine correctly because the + imgnl routines reset the index counter for the first element in + this case. This index counter was being used assuming only the + second dimension would increment; i.e. images were at least 2D. + (4/8/04, Valdes) + +images$imutil/src/hedit.x + The task could segfault when initializing/adding a new keyword with a + null value. The evexpr operator was being initialized as a scalar and + the string pointer wasn't allocated, added a check so string pointer + is always allocated to at least one char. (3/23/04, MJF) + +images$imcoords/src/t_wcsctran.x + If the image dimensionality is zero then use the WCS dimensionality. + (3/15/04, Valdes) + +images$imcoords/src/t_wcsctran.x + An error in mw_openim was trapped but the garbage in the return value + caused a segmentation error during error recovery. A fix was made to + this and also to report, as a comment, the MWCS error. + (3/12/04, Valdes) + +======= +V2.12.2 +======= + +images$immatch/src/imcombine/src/xtimmap.gx + The change for the short image name from 8/20/03 was lost. This + change restores it. (2/3/04, Valdes) + +images$immatch/src/imcombine/src/xtimmap.gx + Copying the IMIO structure to an internal structure required two + amovi calls in order to maintain alignment. (2/12/04, Zarate/Valdes) + +images$immatch/src/geometry/t_geoxytran.x +images$immatch/src/geometry/trinvert.x + +images$immatch/src/geometry/mkpkg +images$immatch/geoxytran.par +images$immatch/doc/geoxytran.hlp + A new parameter "direction" was added to GEOXYTRAN to allow evaluating + the transformation in either the forward direction (the previous behavior + and default with the new parameter) or the backward direction. The + help page was updated to describe this new feature and address confusion + over the relationship between geomap, geotran, and geoxytran. + (2/7/03, Valdes) + +images$immatch/imalign.cl + Restructured to avoid goto statements, no functional changes (12/29/03, MJF) + +images$lib/geomap.gx + Small change to improve stability. Instead of checking the value + of the difference of two large numbers for zero, the equality of + the two numbers is checked. (10/29/03, Valdes) + +images$immatch/src/imcombine/src/xtimmap.gx + Increase the stored filename length. (8/20/03, Valdes) + +images$immatch/src/imcombine/src/icsetout.x + When using offsets based on physical coordinates and there is a flip + the routine was incorrectly using imunmap instead of xt_imunmap. + (7/30/03, Valdes) + +images$immatch/src/imcombine/src/icstat.gx + Fixed an incorrect declaration for asum$t() in the generic routine. + This is the correct fix for: + images$immatch/src/imcombine/src/generic/icstat.x + Fixed an incorrect declaration for asumd() (7/8/03, MJF) + (7/30/03, Valdes) + +images$imgeom/src/t_imshift.x + Fixed and incorrect declaration for clgetd() (7/8/03, MJF) + +images$tv/imexamine/stfprofile.x + The selection of a point to get a first estimation of the FWHM in + stf_fit did not check for the case of a zero value. This could cause + a floating divide by zero. (5/5/03, Valdes) + +images$tv/imexamine/stfprofile.x + The subpixel evaluation in stf_profile involves fitting an image + interpolator to a subraster. To avoid attempting to evaluate a point + outside the center of the edge pixels, which is a requirement of the + image interpolators, the interpolator is fit to the full data raster + and the evaluations exclude the boundary pixels. (5/5/03, Valdes) + +images$tv/imexamine/stfmeasure.x +images$tv/imexamine/stfprofile.x + +images$tv/imexamine/mkpkg.x + Separated the routines in stfmeasure.x to correspond to those used + in OBSUTIL. (5/6/03, Valdes) + +images$immatch/src/imcombine/src/icombine.x + Due to the way IMIO works it converts an out of memory error to + cannot open pixel file if a memory alloaction error occurs when + allocating file descriptor memory. So if this error occurs and the + number of images is small the error will be interpreted as + a memory allocation error. (4/9/03, Valdes) + +images$tv/display/dspmmap.x + Added errchk's for im_pmmapo to avoid the potential for a segmentation + violation due to an uncaught error. (9/16/02, Valdes) + +images$imgeom/src/t_imshift.x + An incorrect shift of one pixel would appear when the specified shift + was near zero and less than the precision of a real; i.e. yshift=1e-9. + The code was changed to use double precision as appropriate. + (9/12/02, Valdes) + +images$tv/imexamine/iemw.x + Added a heuristic check for the appropriate hHmM formats. + (9/12/02, Valdes) + +images$tv/display/dspmmap.x + A common case of matching a mask to an image is where the pixel sizes + are the same but there are offsets and/or different sizes. An optimized + mask matching based on using range lists and not calling mwcs was + added. (9/12/02, Valdes) + +images$tv/display/dspmmap.x + The matched mask was incorrectly returning the input mask when the + scale and offset matched but not the size. (9/10/02, Valdes) + +images$imutil/src/imrep.gx + In imrepr$t there was a declaration error for ilower. (see buglog #507) + (9/4/02, Valdes/Warner) + +images$immatch/src/listmatch/t_imctroid.x + Added a F_FLUSHNL for the standard output to avoid having the warnings + printed with eprintf from occuring in the middle of the output + lines. This caused a problem in imalign when scanning the lines. + (8/19/02, Valdes) + +======= +V2.12.1 +======= + +images$immatch/src/imcombine/src/iclog.x + The pixel masks listed in the log output was wrong. This only applies + to the log, the correct mask is used during processing. (6/26/02, Valdes) + +pkg/images/src/xregister/t_xregister.x +pkg/images/src/xregister/rgxicorr.x + If the xregister task parameter interactive = yes and the output images + are defined then the computed shifts are not applied. This occurs because + the reinitialization routine triggered by the 'n' keystroke command is in + the wrong place. The work around is to run xregister twice, once + interactively to compute the shifts, and again non-interactively to + apply them. (6/20/02, Davis) + +images$immatch/src/imcombine/src/icsetout.x + Needed to disable axis mapping to handle cases where the input + images are dimensionally reduced. (6/14/02, Valdes) + +images$immatch/src/imcombine/src/xtimmap.gx + The size of image header data structures was computed incorrectly + resulting in the potential for segmenation violations. (6/14/02, Valdes) + +===== +V2.12 +===== + +images$imutil/src/t_imstat.x + If nclip > 0 and the initial mean and standard deviation are INDEF + (a very unlikely occurence unless there is a mask) the k-sigma + limit computation in the imstatistics task could overflow. This does + not affect released code. (5/01/02, Davis) + +images$immatch/src/imcombine/src/icmask.x + The fix of 4/8/02 had been inadvertently undone. (4/25/02, Valdes) + +images$imutil/src/imadiv.gx +images$imutil/src/generic.imadiv.x + Fixed an error in the code which evaluates an expression of the form + "inimage / 0" which was causing a bus error on the macosx but not on + solaris. This error has apparently been there for ever. (4/24/02, Davis) + +images$immatch/src/imcombine/t_imcombine.x +images$immatch/src/imcombine/src/icombine.x +images$immatch/src/imcombine/src/icsetout.x +images$immatch/src/imcombine/src/icmask.x +images$immatch/src/imcombine/src/iclog.x + The projection option was no longer working. There was a typo in + t_imcombine.x, the dimensionality of the image was not set + properly in icombine.x and icsetout.x, and the masks for projected + images was not correct. (4/22/02, Valdes) + +images$immatch/src/imcombine/src/icsetout.x + When computing offsets the registration point was the reference pixel + returned by mw_gwterm for the first image. The code then went on to + assume this was a logical pixel when comparing with the other images, + which is not true when there is a physical coordinate system. The + algorithm was fixed by converting the reference point to logical + coordinates. (4/18/02, Valdes) + +images$imcoords/src/t_ccget.x + Ccget was not transforming the units and applying the user supplied + formatting parameters if the input or output coordinate system, e.g. + ICRS, was the same as the catalog coordinate system. This does not + affect released code. (04/16/02, Davis) + +images$immatch/src/imcombine/src/icmask.x + There was a bug in the recent change to open and close masks as needed + where a possibly null filename pointer was being checked for being + a null string. (4/8/02, Valdes) + +images$imcoords/src/t_wcsctran.x + Added a check for INDEF valued input coordinates. (4/04/02, Davis) + +images$tv/imexamine/iegimage.x + Image sections in the image name retrieved from the display server + are now handled more intelligently. In particular, 2D sections of + higher dimensional images will now examine the correct 2D section + rather than just the lowest 2D plane. (3/20/02, Valdes) + +images$tv/display/t_display.x + If an image section of a higher dimensional image is displayed the + image section is included in the image name sent to the display + server. Previously the section was stripped and so it was not + possible to know the 2D section displayed. For now we keep backwards + compatibility by stripping any section from 2D parent images. + (3/20/02, Valdes) + +images$immatch/src/imcombine/src/icombine.x + Added error checks for imunmap of the output files. In the final + staage of closing the output if an error occurs, principally in + writing mask, this will at least allow the primary combined output + image to be written. This is useful when an extremely large combining + operation is performed. (3/6/02, Valdes) + +images$immatch/src/imcombine/src/iclog.x +images$immatch/src/imcombine/src/icmask.x +images$immatch/src/imcombine/src/icstat.gx + Rather than open all the masks at the beginning the masks are now + opened and closed as needed. For situations with offsets this + can reduce the amount of memory required for the masks. + (3/6/02, Valdes) + +images$/imutil/src/hselect.x +images$/imutil/src/hedit.x + Added missing xev_freeop calls to the hedit and hselect tasks and a missing + mfree call to the hselect task. (3/5/02, Davis) + +images$tv/imexamine/iegimage.x + When imexmaine fails to map the image name returned by the display server + it uses the frame buffer. Previously there was no warning message about + failing to map the image. Now there is a warning. This is only given + once until the image name is changed either by going to a new frame + buffer or doing a new display. (3/4/02, Valdes) + +images$tv/imexamine/iegimage.x +images$tv/imexamine/t_imexam.x + When the frame buffer is used as the image source (when the image name + in the display frame cannot be mapped) the final imunmap woutd + attempt to unmap the same descriptor twice. (3/1/02, Valdes) + +images$imcoords/src/t_wcsctran.x + Fixed a bug the logical to tv coordinate mapping which could occur + if the section subsmapling parameter was > 1, the input image was a section + of a higher dimensioned image, and the first dimension was not one + of those extracted. (3/1/02, Davis) + +images$tv/imexamine/iegimage.x + The 'p' was not properly updated for the multiple WCS changes. + (2/26/02, Valdes) + +images$immatch/src/imcombine/src/xtimmap.gx + The header keywords were not being fully copied. (2/20/02, Valdes) + +images$immatch/src/imcombine/src/icstat.gx +images$immatch/src/imcombine/src/xtimmap.gx + asum$t declared incorrectly as type PIXEL rather than real. xt_cpix + incorrectly defined as pointer function instead of a subroutine. + (2/20/02, Valdes) + +images$imutil/src/t_minmax.x + Fixed a floating overflow error in minmax which occurred if the + dimensionality of the input image was 0 and the update parameter + was set to yes. In this case the min and max values were set to + INDEF (min and max computation is done internally in double precision) + could not fit into the real valued min and max slots in imhdr.h + hence the conversion error. (2/19/02, Davis) + +images$tv/imexamine/iegimage.x + The changes to support multiple WCS per frame involved keeping track of + the full WCS frame id (i.e. 101) rather than just the frame number. + There was a minor error in this bookkeeping when incrementing the + the next display frame to be used. (2/19/02, Valdes) + +images$lib/imcopy.x + Added a missing sfree statement to the img_imcopy routine. (2/18/02, Davis) + +images$immatch/src/imcombine/src/icaverage.x +images$immatch/src/imcombine/src/icsigma.x +images$immatch/src/imcombine/src/icomb.gx +images$immatch/src/imcombine/src/icscale.x +images$immatch/src/imcombine/src/icemask.x +images$immatch/doc/imcombine.hlp + If weights of zero are given for an image then that image will not + contribute to the output weighted average unless all of the + non-excluded images have zero weight. In that case the unweighted + average is output. The exposure mask is the sum of the exposure times + of the images with non-zero weights. These changes allow combining + only data which is considered good (photometric or good seeing) as + specified by the weights but still including non-good data in the + final image when there is no good data. The combinined zero weight + data will have an exposure time mask value of zero. (2/8/02, Valdes) + +images$immatch/src/imcombine/src/icmask.x +images$immatch/src/imcombine/src/icmask.h +images$immatch/src/imcombine/src/iclog.h +images$immatch/src/imcombine/imcombine.par +images$immatch/imcombine.par +images$immatch/doc/imcombine.hlp + The masktype parameter may now specify !<keyword> to select the keyword + to use for a mask. When this option is selected the mask value + interpretation is "goodval". (2/5/02, Valdes) + +images$immatch/src/imcombine/src/icmask.x + If pl_loadf fails then pl_loadim is tried. This adds support for + masks in FITS extensions. (2/5/02, Valdes) + +images$tv/display/dspmmap.x + Added the feature that the bad pixel mask or overlay mask may be + specified by a keyword value with the syntax !<keyword>. This is + important for multiextension files where various masks are set + as keywords. The new task OBJMASKS also writes the object mask name + that is created for an image in the header. Use of !objmask then + allows the object mask to be used for the bad pixel mask (to set + the scaling using only sky pixels) and for overlay. + (2/5/02, Valdes) + +images$tv/display/sigm2.x + The routine to compute the maximum value as the interpolated quantity + was incorrect because the size of the input and output arrays were + treated as the same when they are not. This is used for overlay + display which produced the symptom of horizontal lines. + (2/5/02, Valdes) + +images$immatch/src/imcombine/src/icombine.x +images$immatch/src/imcombine/src/icomb.gx +images$immatch/src/imcombine/src/xtimmap.gx +images$immatch/src/imcombine/src/icombine.h + The buffer size management calculation based on the number of input + images was no longer working because unless IM_BUFFRAC is explicitly + set to 0, the requested buffer size is just a lower limit. The buffer + size calculation was modified and calls to set IM_BUFFRAC to zero were + added. (1/30/02, Valdes) + +images$immatch/src/imcombine/src/xtimmap.gx +images$immatch/src/imcombine/src/icomb.gx +images$immatch/src/imcombine/src/icgdata.gx + The code to close unused images when they are not needed had an error + when there were y offsets. Rather than closing each image when it not + longer contributed to an output line due to an offset, it was instead + closing all images on every line and then mapping them again. + (1/29/02, Valdes) + +images$imutil/src/t_minmax.x + Removed extra arguments from the calls to clpstr. (01/07/02, Davis) + +images$imutil/src/t_imstat.x + Added a call setting IM_BUFFRAC to 0 to the memory caching code in the + imstatistics task in order to force the imio buffer to be the size of + the input image. + (12/10/01, Davis) + +images$imcoords/src/t_wcsctran.x +images$imcoords/src/rgstr.gx +images$imcoords/src/rgstr.x + Wcsctran may produce a string_file error if the input image is + dimensionally reduced. The problem was caused by an uninitialized + array. The code works ig by chance the array is initialized to 0. + (12/8/01, Davis) + +images$immatch/src/imcombine/src/icscale.x + Fixed bug with normalization. (12/4/01, Valdes) + +images$imutil/src/hedit.par +images$imutil/doc/hedit.hlp +images$imutil/src/hedit.x + For backwards compatability modified the precedence of the operator + switches from addonly / add / delete to add / addonly / delete. + Also clarified the switch precedence rules in the help page. + (11/13/01, Davis) + +images$imutil/src/imheader.x + Fixed imheader so it prints out an image size of 0 if IM_NDIM(im) is + is 0 instead of the contents of the first element of the IM_LEN(im,1) + vector which may be non-zero. (11/05/01, Davis) + +images$immatch/src/xregister/rgxicorr.x +images$immatch/src/xregister/rgxcolon.x +images$immatch/src/xregister/rgxtools.x + Fixed a bug in the xregister multiple region handling code that was + preventing xregister from computing x-correlations on regions beyond + the first in interactive mode. (10/17/01, Davis) + +images$imcoords/src/t_skyctran.x +images$imcoords/src/t_sffind.x +images$imfilter/src/mode.x +images$imutil/doc/hedit.hlp +images$imutil/doc/imdivide.hlp +images$tv/doc/Tv.hlp +images$tv/iis/doc/Cv.hlp +images$tv/iis/doc/cv.hlp +images$tv/iis/ids/doc/Imdis.hlp +images$immatch/src/imcombine/t_imcombine.x + Fixed various missing/extra argument problems in the images package + code that were found with spplint. Also fixed miscellaneous help page + formatting problems. (9/19/01 Davis) + +images$imutil/src/t_imjoin.x + Changed the clgetc call to clgstr calls for the pixtype parameter in + imjoin. This change is required to avoid an "ERROR: Parameter not a legal + character constant (parname)" error introduced by recent changes to the CL. + Basically "" is no longer a legal argument for clgetc. (9/17/01 Davis) + + +images$imutil/imstatistics.par +images$imutil/doc/imstatistics.hlp +images$imutil/src/imstat.h +images$imutil/src/t_imstat.x + 1. Added an interative rejection capability to the imstatistics task. + 2. Added a cacheing option that can speed up the performance of the + task if the midpt/mode statistic is computed or if iterative rejection + is performed. + (8/30/01, Davis) + +images$immatch/src/imcombine +images$immatch/src/imcombine/src + + 1. Further modifications and optimizations. + 2. Reorganized with a subdirectory of common routines shared with + the CCD reduction versions. + (8/29/01, Valdes) + +images$immatch/src/imcombine +images$immatch/imcombine.par +images$immatch/doc/imcombine.hlp + 1. New parameters "headers", "bpmasks", "rejmasks", "nrejmasks", + and "expmasks" provide additional types of output. The old + parameters "rejmask" and "plfile" were removed. The new + "nrejmasks" parameter corresponds to the old "plfile" and the + new "rejmasks" parameter corresponds to the old "rejmask". + 2. There is a new "combine" type "sum" for summing instead of + averaging the final set of offset, scaled, and weighted + pixels. + 3. There is a new parameter "outlimits" to allow output of a + subregion of the full output. This is useful for raster + surveys with large numbers of images. + 4. Additional keywords may appear in the output headers. + 5. The scaling is now done relative to the first image rather than + an average over the images. This is done so that flux related + keywords such as exposure time and airmass remain + representative. + 6. The environment parmaeter "imcombine_option" allows using an + algorithm that opens and closes images. This is very slow but + allows combining large numbers of images which are not the same + size. + 7. New help page. + (8/17/01, Valdes) + +tv$imexamine/iecimexam.x +tv$imexamine/ieeimexam.x +tv$imexamine/iegcur.x +tv$imexamine/iegimage.x +tv$imexamine/iegnfr.x +tv$imexamine/iehimexam.x +tv$imexamine/ieimname.x +tv$imexamine/iejimexam.x +tv$imexamine/ielimexam.x +tv$imexamine/ieopenlog.x +tv$imexamine/ieqrimexam.x +tv$imexamine/ierimexam.x +tv$imexamine/iesimexam.x +tv$imexamine/ietimexam.x +tv$imexamine/ievimexam.x +tv$imexamine/imexam.h +tv$imexamine/t_imexam.x + Modifications to use multiple WCS mappings. (8/13/01, Valdes) + +tv$imexamine/mkpkg +tv$imexamine/x_imexam.x + +tv$imexamine/imexamine.par + + Added a mkpkg target to compile standalone; i.e. mkpkg standalone. + (8/13/01, Valdes) + +immatchx$src/ximcoords/t_ccmap.x + Fixed a bug in the ccmap refpoint = "coords" option that could produce a + totally inaccurate reference point estimate if the image spanned 0 + hours right ascension due to coordinate wrap around. (7/20/01 Davis) + + +images$imgeom/src/t_magnify.x + Fixed a bug in the magnify task that can cause a previous block of lines + to be repeated instead of a new block computed. This bug was introduced + when magnify was upgraded to use the new interpolants code and to use + boundary extension in imio. A typo was made in the update which produces + the error in the case where the buffer does not update when a new group of + lines is computed. This situtation is not normally supposed to occur + but may in the situation where the magnification factors are greater than + the internal buffer size of 16 output image lines. (6/21/01, Davis) + +images$immatch/src/imcombine/t_combine.x +images$immatch/src/imcombine/icombine.gx +images$immatch/src/imcombine/icgdata.gx +images$immatch/src/imcombine/icscale.x +images$immatch/src/imcombine/xtimmap.x + +images$immatch/src/imcombine/mkpkgx + When combining more images than there are IRAF FIO descriptors the + additional images are mapped and unmapped as needed. There is no + limit now on the number of images or that they be capable of being + stacked into a single image for combining by projection. The creation + of a temporary stack image is no longer done. (6/16/01, Valdes) + +images$immatch/src/psfmatch/rgpfilter.x +images$immatch/src/psfmatch/rgpconvolve.x + Fixed a floating point error in the replace algorithm gaussian fitting + routines that occurs if the argument to the log function is exactly zero. + Fixed a symmetry error in the convolve routine that would produce a + corrected psf that was flipped in x and y if the psf matching kernel + did not have mirror symmetry. The solution was simply to rotate the + convolution kernel 180 degrees before applying it to the input image. + The matching kernel itself is correctly oriented and can be used + directly with the fconvolve task. (5/15/01 Davis) + +images$imutil/hedit.par +images$imutil/doc/hedit.hlp +images$imutil/src/hedit.hlp + Added a new addonly parameter to the hedit task. If addonly is set + a new field will only be added to the image header if it does not + already exist. (4/30/01, Davis) + +images$tv/display/dspmmap.x + Fixed problems with ds_match. The new version is more robust and + correct. A bad pixel for the displayed image is the maximum of all + pixels in the pixel mask which fall within the display pixel. This + version still does not allow any relative rotations but does allow + non-integer offsets. (4/24/01, Valdes) + +images$imgeom/src/t_im3dtran.x +images$imgeom/src/t_imtrans.x +images$imgeom/src/t_imshift.x +images$imgeom/src/t_magnify.x + Modified the im3dtran, imtranspose, imshift, and magnify tasks so that + the output image which is mapped NEW_COPY is closed before the input image. + To the best of my knowledge this has not caused problems to date but + it could (3/1/01 Davis) + +images$immatch/src/imcombine/icsetout.x + The physical coordinates of the output WCS are now reset. + (3/1/01 Valdes) + +images$lib/geomap.h +images$lib/geogmap.h +images$lib/geofit.gx +images$lib/geofit.x +images$lib/geogmap.gx +images$lib/geogmap.x +images$lib/geograph.gx +images$lib/geograph.x +images$lib/geomap.key +images$lib/coomap.key +images$immatch/geomap.par +images$immatch/doc/geomap.hlp +images$immatch/src/geometry/t_geomap.gx +images$immatch/src/geometry/t_geomap.x +images$imcoords$ccmap.par +images$imcoords/src/t_ccmap.x +images$imcoords/doc/ccmap.hlp + + Added a new parameter maxiter to the geomap and ccmap tasks. Maxiter + defines the maximum number of rejection iterations and has a default + value of 0 for no rejection. + + Changed the default value of the ccmap and geomap parameter reject from + INDEF to 3.0. (05/01/01 Davis) + +pkg/images/imcoords/ + Added the tasks CCGET and CCSTD to the image package. (10/12/00 Davis) + +pkg/images/imcoords/src/t_ccmap.x +pkg/images/immatch/src/geometry/t_geomap.gx +pkg/images/immatch/src/geometry/t_geomap.x +pkg/images/lib/geomfit.gx +pkg/images/lib/geomfit.x +pkg/images/lib/geogmap.gx +pkg/images/lib/geogmap.x +pkg/images/lib/geogmap.h +pkg/images/lib/geogragh.gx +pkg/images/lib/geograph.x +pkg/images/lib/geomap.key +pkg/images/lib/coomap.key + Added a :order command to ccmap and geomap so that the user can change all + the orders at once. (10/12/00 Davis) + + Modified the error checking to fix a segvio problem which occured in ccmap + and geomap if the number of points was too few for a good fit and verbose + was set to no. (10/12/00 Davis) + +pkg/images/imcoords/imcctran.par +pkg/images/imcoords/src/t_imcctran.x +pkg/images/imcoords/doc/imcctran.hlp + Added support for doing coordinate transformations accurately on + images with non-zenithal projections where rotating the CD matrix + does not work accurately. + + Added a new parameter longpole to the imcctran task. If longpole =yes + then coordinate transformations with zenithal projections will be + rotated using longpole rather than the CD matrix. (2/7/00 Davis) + +pkg/images/immatch/ +pkg/images/imcoords/ + The immatch and imcoords packages were modified to use the new version + of the skywcs routines in xtools. (10/12/00, Davis) + +pkg/images/immatch/imcentroid.par +pkg/images/immatch/imalign.par +pkg/images/immatch/imalign.cl +pkg/images/immatch/doc/imcentroid.hlp +pkg/images/immatch/doc/imalign.hlp +pkg/images/immatch/src/listmatch/t_imctroid.x +pkg/images/immatch/src/listmatch/mkpkg + Added a new parameter maxshift to the imcentroid and imalign tasks. + Maxshift is the maximum permitted difference between the computed and + predicted shifts. Maxshift can be used to reject objects whose centers + have wandered too far from the expected center. By default maxshift is + undefined. (10/9/00, Davis) + +pkg/images/imcoords/src/sffind.x +pkg/images/imcoords/doc/starfind.hlp + Modified the way starfind computes the background estimate used to compute + the first and second order moments so that it does not depend on the + value and density of the central pixel. (10/9/00, Davis) + +pkg/images/immatch/src/imcombine/t_imcombine.x + Modified the conversion of pclip from a fraction to a number of images + because for even number of images the number above/below the median + is one too small. (9/26/00, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x +pkg/images/immatch/src/imcombine/icimstack.x + Error handling when running out of memory with immap (due to a very + large min_lenuserarea) and when trying to stack was fixed up to + report reasonable error messages and to not go into an infinite loop + trying to manage memory. (9/13/00, Valdes) + +pkg/images/immatch/src/imcombine/icombine.gx +pkg/images/immatch/src/imcombine/icgdata.gx + Additional errchk declarations were needed to catch out of memory + during image reading which were not caught during the initial + pass at reading the images. (9/11/00, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x + When a "cannot open image" error occurs for some other reason than + running out of file descriptors the task would go into an infinite + loop or given a segmentation error. The checking was improved to + avoid this. (8/31/00, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x + When there is an output mask or sigma image and the number of images + exceeds the maximum number allowed by the number of logical file + descriptors the task failed to delete the files when starting over + using the stacked image approach. This would result in an image + already exists error. This was fixed by deleting the files upon + error recovery. (8/9/00, Valdes) + +pkg/images/immatch/src/imcombine/mkpkg +pkg/images/immatch/src/imcombine/x_imcombine.x + +pkg/images/immatch/src/imcombine/imcombine.par + + Added a mkpkg entry to allow making the IMCOMBINE task independently + of the entire IMAGES package for testing and debugging purposes. + (6/21/00, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine. +pkg/images/immatch/src/imcombine/icimstack.x +pkg/images/immatch/src/imcombine/iclog.x +pkg/images/immatch/doc/imcombine.hlp + When there are a large number of images with bad pixel masks both the + input images and the bad pixel masks are stacked for combining. The + addition of stacking the masks allows for independent bad pixel masks + for each input image which was not supported previously. + (6/21/00, Valdes) + +pkg/images/immatch/src/imcombine/icmedian.gx + Replaced median algorithm with the faster Wirth algorithm. + (5/16/00, Valdes) + +pkg/images/lib/skywcs.x + Incorrect values for the epoch of observations were being computed + and printed by tasks like skyctran and imcctran if the input coordinate + system was read from an image and the input coordinate system was + galactic. The problem was that the epoch was being converted to MJD + twice instead of once. Unless a proper motion correction was being computed + this problem should have little practical effect although it is + disturbing to odd units in the file headers. (1/31/00, Davis) + +pkg/images/immatch/doc/imcombine.hlp +pkg/images/immatch/imcombine.par + The "outtype" parameter can take the value "none" in addition to one + of the standard datatypes. The help page was incorrect/unclear what + was meant by not specifying an output type. + (1/18/00, Valdes) + +pkg/images/immatch/src/imcombine/icgdata.gx +pkg/images/immatch/src/imcombine/iclog.x +pkg/images/immatch/src/imcombine/icmask.x +pkg/images/immatch/src/imcombine/icombine.gx +pkg/images/immatch/src/imcombine/icscale.x +pkg/images/immatch/src/imcombine/icsetout.x + Changed declarations for the array "out" to be ARB rather than 3 in + some places (because it was not changed when another element was added) + or 4. This will insure that any future output elements added will + no require changing these arguments for the sake of cosmetic correctness. + (1/13/00, Valdes) + +pkg/images/immatch/src/imcombine/icsetout.x + Fixed error with MWCS dimension mismatch when using offsets on + input images which have been dimensionally reduced. (1/12/00, Valdes) + +======== +V2.11.3a +======== +======= +V2.11.3 +======= + +pkg/images/imfilter/src/fmedian.x +pkg/images/imfilter/src/fmode.x +pkg/images/imfilter/src/frmedian.x +pkg/images/imfilter/src/frmode.x +pkg/images/imfilter/src/fmd_hist.x + Changed the fast median / mode histogram storage from short to int to + avoid overflows in the case that xfilter * yfilter > 32767 and > 32767 + pixels fall into a single bin as may happen in bad pixel regions. + (11/19/99, Davis) + +pkg/images/immatch/src/imcombine/icombine.gx + An input array was declared with a value of 3 though it was passed to + the routine with 4 elements. Later there was a reference to + the 4th element. While this is legal as the size in the declaration + is a dummy this was a compiler error on one platform. Changed the + declaration to 4. (11/19/99, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x + A call to IMUNMAP within the THEN clause of an IFERR replaces the + error string (inappropriately) so that a later ERRACT reports the + wrong error. The code was modified to get the error string before + calling IMUNMAP and then restores the error condition with an + ERROR call instead of an ERRACT. (10/21/99, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x + Modified error recovery to avoid a tranfer out of an IFERR block + message. (10/14/99, Valdes) + +pkg/images/immatch/doc/imcombine.hlp + Updated the expected number of images that can be combined without + stacking. (10/11/99, Valdes) + +pkg/images/imcoords/src/mkpkg +pkg/images/imgeom/src/mkpkg +pkg/images/immmatch/src/imcombine/generic/mkpkg +pkg/images/immmatch/src/imcombine/mkpkg +pkg/images/immmatch/src/imutil/generic/mkpkg +pkg/images/immmatch/src/imutil/mkpkg + Added some missing file dependencies and removed some uneccessary ones + from the mkpkg files. (9/21/99, Davis) + +======= +V2.11.2 +======= + +pkg/images/imutil/src/t_imarith.x + Added a check for division by zero in the header keywords. A warning + is printed, the keyword is not updated, and task completes without + aborting. (8/10/99, Valdes) + +pkg/images/imcoords/src/t_ccsetwcs.x +pkg/images/imcoords/src/ccxytran.x + Update the ccsetwcs and cctran tasks so they can deal correctly with the + zpx transformation. These tasks had been updated in immatchx but the + updates did not make it into the images versions of the tasks. + (Davis, June 26, 1999) + +pkg/images/imcoords/src/t_starfind.x + Modified the default output file naming code to deal rationally with + fits image extension names. + (Davis, June 26, 1999) + +pkg/images/lib/skywcs.h +pkg/images/lib/skywcs.x +pkg/images/imcoords/src/ttycur.key +pkg/images/imcoords/src/skycur.key +pkg/images/imcoords/doc/ccfind.hlp +pkg/images/imcoords/doc/ccmap.hlp +pkg/images/imcoords/doc/ccsetwcs.hlp +pkg/images/imcoords/doc/skyctran.hlp +pkg/images/imcoords/doc/imcctran.hlp + Added support for the ICRS system to the images.imcoords package. + (Davis, June 24, 1999) + +pkg/images/immatch/doc/geomap.hlp + Added some notes and an example to explain and illustrate the role of the + reference and input coordinates for different applicatons. i.e. image + resampling and coordinate transformation. + (Davis, June 18, 1999) + +pkg/images/immatch/src/geometry/t_geotran.x + Fixed a bug in the transform list decoding routine that was preventing + geotran from using the same transform for all the input images. + (Davis, June 18, 1999) + +pkg/images/immatch/src/imcombine/icsetout.x + Changed to better parse the offset types. The WCS correction for + offsets was incorrect. (6/17/99, Valdes) + +pkg/images/imcoords/src/t_wcsctran.x + Fixed a bug in the units initialization code. (Davis, June 3, 1999) + +pkg/images/imcoords/src/t_ccsetwcs.x + Improved the error message handling in the case when a database + records either not be found or could not be successfully decoded + in the ccsetwcs task. (Davis, June 3, 1999) + +pkg/images/immatch/src/geometry/geotran.x + Fixed a type mismatch problem in a call to max that was causing compilation + errors on the Dec Station. (Davis, June 2, 1999) + +pkg/images/immatch/doc/imcombine.hlp + Clarified whether the offset is done before scaling or afterword. + (5/18/99, Valdes) + +pkg/images/imcoords/doc/ccsetwcs.hlp +pkg/images/imcoords/doc/imcctran.hlp +pkg/images/imcoords/doc/skyctran.hlp +pkg/images/immatch/doc/skyxymatch.hlp + Added some information about the new DATE-OBS format to the help + pages for the ccsetwcs, imctran, skyctran, and skyxymatch tasks. + + (Davis, May 13, 1999) + +pkg/images/lib/skywcs.x + Added support for the new DATE-OBS format to the mwcs decoding routines. + All tasks in the imcoords and immatch packages which read the image wcs + will pick up the change. + + (Davis, May 13, 1999) + +pkg/images/immatch/src/listmatch/t_xyxymatch.x +pkg/images/imcoords/src/t_ccxymatch.x + Fixed the xyxymatch and ccxymatch tasks so that they work properly when + the number of reference files is greater than 1 and equal to the + number of input files. In that case xyxymatch and ccxymatch are supposed + to pair up the input and reference files one to one instead of using the + last file in the reference file list. + + (Davis, February 22, 1999) + +pkg/images/immatch/src/wcsmatch/t_wcscopy.x + Modified wcscopy to update the RADECSYS, EQUINOX, and MJD-WCS keywords + as well as the mwcs keywords. + (1/7/99, Davis) + +pkg/images/immatch/gregister.par +pkg/images/immatch/sregister.cl +pkg/images/immatch/wregister.cl +pkg/images/immatch/doc/gregister.hlp +pkg/images/immatch/doc/sregister.hlp +pkg/images/immatch/doc/wregister.hlp + Installed new versions of the gregister, sregister, and wregister tasks + (these tasks are scripts which call geotran) which support 1D and 2D + sinc and look-up table sinc interpolation and 2D drizzle resampling. + (12/29/98, Davis) + +pkg/images/imgeom/rotate.par +pkg/images/imgeom/imlintran.par +pkg/images/imgeom/doc/rotate.hlp +pkg/images/imgeom/doc/imlintran.hlp + Installed new versions of the rotate and imlintran tasks (these tasks are + scripts which call geotran) which support 2D sinc and look-up table sinc + interpolation and 2D drizzle resampling. + (12/29/98, Davis) + +pkg/images/immmatch/geotran.par +pkg/images/immatch/src/geometry/geotran.h +pkg/images/immatch/src/geometry/t_geotran.x +pkg/images/immatch/src/geometry/geotran.x +pkg/images/immatch/src/geometry/geotimtran.x +pkg/images/immatch/doc/geotran.hlp + Installed a new version of the geotran task which supports 1D and 2D + sinc and look-up table sinc interpolation and 1D and 2D drizzle resampling. + Simplified the code and modified the out-of-bounds pixel handling algorithm + to conform to the other image resampling tasks. Corrected a couple of bugs + in the 1D image resampling code. + (12/29/98, Davis) + +pkg/images/immatch/xregister.par +pkg/images/immatch/src/t_xregister.x +pkg/images/immatch/src/rgximshift.x +pkg/images/imgeom/doc/xregister.hlp + Installed a new version of the xregister task which supports 2D sinc and + look-up table sinc interpolation and 2D drizzle resampling. + (12/29/98, Davis) + +pkg/images/imgeom/shiftlines.par +pkg/images/imgeom/src/t_shiftlines.x +pkg/images/imgeom/src/shiftlines.x +pkg/images/imgeom/doc/shiftlines.hlp + Installed a new version of the shiftlines task which supports 1D sinc and + look-up table sinc interpolation and 1D drizzle resampling. + (12/28/98, Davis) + +pkg/images/imgeom/imshift.par +pkg/images/imgeom/src/t_imshift.x +pkg/images/imgeom/doc/imshift.hlp + Installed a new version of the imshift task which supports 2D sinc and + look-up table sinc interpolation and 2D drizzle resampling. + (12/28/98, Davis) + +pkg/images/imgeom/magnify.par +pkg/images/imgeom/src/t_magnify.x +pkg/images/imgeom/doc/magnify.hlp + Installed a new version of the magnify task which supports 1D and 2D + sinc and look-up table sinc interpolation and 1D and 2D drizzle resampling. + Modified the out-of-bounds pixel handling algorithm to conform to the + other image resampling tasks. + (12/28/98, Davis) + +pkg/images/immatch/src/imcombine/icsetout.x + Fixed a problem with input images that have dimensional reduction. + (10/6/98, Valdes) + +pkg/images/imutil/src/t_imarith.x + If noact = yes, IMARITH would fail with a segmentation violation. This + was occuring because the header updating code was trying to access + the output image which did not exist. (9/16/98, Davis) + +pkg/images/tv/imexamine/stfmeasure.x + The logic in STF_FIT for determining the points to fit and the point + to use for the initial width estimate was faulty allowing some bad + cases to get through. (7/31/98, Valdes) + +pkg/images/immatch/src/imcombine/icgdata.gx + Needed to initialize the number of pixels combined for the case where + there is initially no data. (7/29/98, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x +pkg/images/immatch/doc/imcombine.hlp + The internal calculation type was changed from the highest precedence + type of the input images to the highest of the input and output. + This allows setting the output type to be real to force computation + in real for integer input images. Not doing this could cause severe + truncation errors if the users specify there own scaling values. + (7/14/98, Valdes) + +pkg/images/tv/imedit/epix.h +pkg/images/tv/imedit/t_imedit.x +pkg/images/tv/imedit/epcolon.x +pkg/images/tv/doc/imedit.hlp + The temporary editing buffer image was made into a unique temporary + image rather than the fixed name of "epixbuf". (6/30/98, Valdes) + +pkg/images/tv/display/dspmmap.x + The steps to check if an image and mask have an integer relationship + (integer sampling and integer offsets) in their physical coordinate + systems could fail because real precision was not high enough + in MWCS transformation calls. Changed variables and MWCS calls + to double. (5/29/98, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x +pkg/images/immatch/src/imcombine/icombine.gx +pkg/images/immatch/src/imcombine/ic_rmasks.x + +pkg/images/immatch/src/imcombine/ic_log.x +pkg/images/immatch/src/imcombine/mkpkg +pkg/images/immatch/imcombine.par +pkg/images/immatch/doc/imcombine.hlp + Added a new output which is a pixel mask identifying which pixel in which + input image is rejected or not included in the final output. + (5/15/98, Valdes) + +pkg/lib/geograph.gx +pkg/lib/geograph.x + Modifed the plot labels to say "reject =" instead of "sigrej = " to + maintain naming consistency with the reject parameter. + (2/23/98 LED) + +pkg/images/immatch/src/imcombine/icsetout.x + The updating of the WCS for offset images was not being done correctly. + (2/5/98, Valdes) + +pkg/images/immatch/src/imcombine/icgrow.gx +pkg/images/immatch/src/imcombine/icombine.gx + Modified algorithm for efficiency. (1/28/98, Valdes) + +pkg/images/immatch/src/imcombine/t_imcombine.x +pkg/images/immatch/src/imcombine/icaclip.gx +pkg/images/immatch/src/imcombine/iccclip.gx +pkg/images/immatch/src/imcombine/icgdata.gx +pkg/images/immatch/src/imcombine/icgrow.gx +pkg/images/immatch/src/imcombine/iclog.x +pkg/images/immatch/src/imcombine/icmm.gx +pkg/images/immatch/src/imcombine/icombine.com +pkg/images/immatch/src/imcombine/icombine.gx +pkg/images/immatch/src/imcombine/icpclip.gx +pkg/images/immatch/src/imcombine/icsclip.gx +pkg/images/immatch/imcombine.par + Changed the grow parameter to a real radius. (12/30/97, Valdes) + +pkg/images/immatch/src/imcombine/icgrow.gx +pkg/images/immatch/src/imcombine/icombine.gx +pkg/images/immatch/doc/imcombine.hlp + Added 2D grow capability. (12/30/97, Valdes) + +pkg/images/immatch/src/imcombine/icaverage.gx +pkg/images/immatch/src/imcombine/icmedian.gx +pkg/images/immatch/src/imcombine/icombine.gx +pkg/images/immatch/src/imcombine/generic/mkpkg + Added new argument to select whether to set values with no data to + a blank value. This allows the calling task to set values without + having them overridden with the blank value. (12/30/97, Valdes) + +pkg/images/immatch/src/imcombine/icmm.gx + Fixed a bug where the image IDs were not being kept. (12/30/97, Valdes) + +======= +V2.11.1 +======= + +pkg/images/immatch/src/linmatch/lsqfit.h +pkg/images/immatch/src/linmatch/rglscale.x +pkg/images/immatch/src/linmatch/rgliscale.x +pkg/images/immatch/src/linmatch/rglsqfit.x +pkg/images/immatch/src/linmatch/rglplot.x + Fixed several bugs in the linmatch bad region handling code. The + bad region flag was not being set if the input image regions were + partially of the image or the sizes of the input reference and input + regions were different image, the error status flag was not being correctly + set after a bad region was detected, and the linear least squares fits + were not being properly protected against bad data regions, and + non-physical data fits. The graphics routines were also changed + to force windowing around the good data points. (12/19/97, Davis) + +pkg/images/immatch/src/linmatch/rglscale.x + The linmatch task could produce a floating operand error if the fitting + algorithm was "mean", "median", or "mode", and one or more of the reference + image regions had a mean, median, or mode values of 0.0. (12/15/97, Davis) + +pkg/images/imutil/src/imcopy.x +pkg/images/lib/imcopy.x + There were two different versions of the imcopy.x file in the images + packages which were causing different behavior in the imcopy task. + Updated the version in the lib subdirectory and deleted the version in + imutil/src. (11/18/97, Davis) + + +pkg/images/imfilter/src/t_median.x +pkg/images/imfilter/src/t_mode.x + The constant for constant boundary extension was declared as in integer + instead of a real in the median and mode tasks causing an FPE error on + the Dec Alpha if the value could not be converted. A value of 0 for + constant would work correctly. (11/11/97, Davis) + +pkg/images/immatch/src/imcombine/t_imcombine.x + When using STF images the failure error when there are too many images + is SYS_IKIOPEN rather than the others that occur with OIF, etc. + Added this error code to be caught and have the program build a + stacked image to combine. (10/21/97, Valdes) + +pkg/images/immatch/src/imcombine/icscale.x +pkg/images/immatch/doc/imcombine.hlp + When the zero offsets or weights are specified in a file the weight + adjustment for differeing sky levels is not done. (10/3/97, Valdes) + +===== +V2.11 +===== + +pkg/images/imutil/src/t_imtile.x + Modified the imtile task to avoid a potential divide by zero error + in the range decoding software. This error was actually due to + an interface change to the xtools$ranges.x code, which has since been + changed back, but the potential for error was there. (8/22/97, Davis) + +pkg/images/imcoords/src/sffind.x + Fixed a type mismatch in the call to atan2. (8/18/97, LED) + +pkg/images/immatch/src/imcombine/t_imcombine.x + Fixed a segmentation violation caused by attempting to close the + mask data structures during error recovery when the error occurs + before the data structures are defined. (8/14/97, Valdes) + +pkg/images/imutil/src/imhistogram.x + Fixed a bug in the imhistogram and phistogram tasks that could cause + an invalid floating point operation if the image contained pixels + outside the valid integer range. (7/31/97, Davis) + +pkg/images/immatch/src/xregister/rgxcorr.x + Fixed a bug in xregister that could occur if: the correlation parameter + was set to "fourier" and one of the correlation regions was completely + off the input image. In this case all the region shifts following + the first bad one were being set to INDEF. (7/25/97, Davis) + +pkg/images/lib/skywcs.x + Modified the coordinates structure initialization routine to explictly set + the physical and logical axis maps on startup rather than leaving them + undefined. (6/16/97, Davis) + +pkg/images/immatch/wcsxymatch.par +pkg/images/immatch/wcsmap.cl +pkg/images/immatch/wregister.cl +pkg/images/immatch/doc/wcsxymatch.hlp +pkg/images/immatch/doc/wcsmap.hlp +pkg/images/immatch/doc/wregister.hlp +pkg/images/immatch/src/wcsmatch/t_wcsxymatch.hlp + Added the transpose parameter to the wcsxymatch, wcsmap, and wregister + task to permit users to force an image transpose in cases where the + image wcs does not contain enough information, e.g. axtype is undefined + or set to the same units. + (6/10/97, Davis) + +pkg/images/immatch/geomap.par +pkg/images/immatch/skymap.cl +pkg/images/immatch/wcsmap.cl +pkg/images/immatch/sregister.cl +pkg/images/immatch/wregister.cl +pkg/images/immatch/doc/geomap.hlp +pkg/images/immatch/doc/skymap.hlp +pkg/images/immatch/doc/wcsmap.hlp +pkg/images/immatch/doc/wregister.hlp +pkg/images/immatch/doc/sregister.hlp +pkg/images/immatch/src/geometry/geoxytran.gx +pkg/images/immatch/src/geometry/geoxytran.x +pkg/images/immatch/src/geometry/t_geomap.gx +pkg/images/immatch/src/geometry/t_geomap.x +pkg/images/immatch/src/geometry/t_geotran.x +pkg/images/immatch/src/psfmatch/rgpbckgrd.x +pkg/images/immatch/src/xregister/rgxbckgrd.x +pkg/images/imcoords/ccmap.par +pkg/images/imcoords/doc/ccmap.hlp +pkg/images/imcoords/src/t_ccmap.x +pkg/images/imcoords/src/t_imcctran.x +pkg/images/lib/coomap.key +pkg/images/lib/geofit.gx +pkg/images/lib/geofit.x +pkg/images/lib/geograph.gx +pkg/images/lib/geograph.x +pkg/images/lib/geomap.h +pkg/images/lib/geomap.key +pkg/images/lib/rgtransform.x + Modifed the geomap, wcsmap, skymap, wregister, sregister, and ccmap + tasks to use the new cross terms option in the gsurfit library. + This involved changing two boolean parameters in each task to string + parameters, making the interactive fitting software shared by all + these tasks aware of the change, and modifying the gsinit calls + to do the initialization properly. + (5/1/97, Davis) + +pkg/images/immatch/src/t_geotran.x +pkg/images/immatch/src/geotran.x + Fixed various bugs triggered by the case where the user sets xmin, xmax, + ymin, or ymax, explicitly, and xmin > xmax or ymin > ymax. Improved + the precision of the flux conservation algorithm at the same time. + (4/30/97, Davis) + +pkg/images/imutil/src/imcopy.x + Changed imcopy so that it ignores the output image section if the + input and output root names are the same, making its behavior + consistent with other images package tasks which can overwrite the input + image. (4/24/97, Davis) + +pkg/images/immatch/doc/imcombine.hlp + Minor readability changes. (4/14/97, Valdes) + +=============================== +Package Reorganization +=============================== + +pkg/images/imarith/t_imsum.x +pkg/images/imarith/t_imcombine.x +pkg/images/doc/imsum.hlp +pkg/images/doc/imcombine.hlp + Provided options for USHORT data. (12/10/96, Valdes) + +pkg/images/imarith/icsetout.x +pkg/images/doc/imcombine.hlp + A new option for computing offsets from the image WCS has been added. + (11/30/96, Valdes) + +pkg/images/imarith/t_imcombine.x +pkg/images/imarith/icombine.gx + Changed the error checking to catch additional errors relating to too + many files. (11/12/96, Valdes) + +pkg/images/imarith/icsort.gx + There was an error in the ic_2sort routine when there are exactly + three images that one of the explicit cases did not properly keep + the image identifications. See buglog 344. (8/1/96, Valdes) + +pkg/images/filters/median.x + The routine mde_yefilter was being called with the wrong number of + arguments. + (7/18/96, Davis) + +pkg/images/imarith/t_imcombine.x +pkg/images/imarith/icombine.gx +pkg/images/imarith/icimstack.x + +pkg/images/imarith/iclog.x +pkg/images/imarith/mkpkg +pkg/images/doc/imcombine.hlp + The limit on the maximum number of images that can be combined, set by + the maximum number of logical file descriptors, has been removed. If + the condition of too many files is detected the task now automatically + stacks all the images in a temporary image and then combines them with + the project option. + (5/14/96, Valdes) + +pkg/images/geometry/xregister/rgxfit.x + Changed several Memr[] references to Memi[] in the rg_fit routine. + This bug was causing a floating point error in the xregister task + on the Dec Alpha if the coords file was defined, and could potentially + cause problems on other machines. + (Davis, April 3, 1996) + +pkg/images/geometry/t_geotran.x +pkg/images/geometry/geograph.x +pkg/images/doc/geomap.hlp + Corrected the definition of skew in the routines which compute a geometric + interpretation of the 6-coefficient fit, which compute the coefficients + from the geometric parameters, and in the relevant help pages. + (2/19/96, Davis) + +pkg/images/median.par +pkg/images/rmedian.par +pkg/images/mode.par +pkg/images/rmode.par +pkg/images/fmedian.par +pkg/images/frmedian.par +pkg/images/fmode.par +pkg/images/frmode.par +pkg/images/doc/median.hlp +pkg/images/doc/rmedian.hlp +pkg/images/doc/mode.hlp +pkg/images/doc/rmode.hlp +pkg/images/doc/fmedian.hlp +pkg/images/doc/frmedian.hlp +pkg/images/doc/fmode.hlp +pkg/images/doc/frmode.hlp +pkg/images/filters/t_median.x +pkg/images/filters/t_rmedian.x +pkg/images/filters/t_mode.x +pkg/images/filters/t_rmode.x +pkg/images/filters/t_fmedian.x +pkg/images/filters/t_frmedian.x +pkg/images/filters/t_fmode.x +pkg/images/filters/t_frmode.x + Added a verbose parameter to the median, rmedian, mode, rmode, fmedian, + frmedian, fmode, and frmode tasks. (11/27/95, Davis) + +pkg/images/geometry/doc/geotran.hlp + Fixed an error in the help page for geotran. The default values for + the xscale and yscale parameters were incorrectly listed as INDEF, + INDEF instead of 1.0, 1.0. (11/14/95, Davis) + +pkg/images/imarith/icpclip.gx + Fixed a bug where a variable was improperly used for two different + purposes causing the algorithm to fail (bug 316). (10/19/95, Valdes) + +pkg/images/doc/imcombine.hlp + Clarified a point about how the sigma is calculated with the SIGCLIP + option. (10/11/95, Valdes) + +pkg/images/imarith/icombine.gx + To deal with the case of readnoise=0. and image data which has points with + negative mean or median and very small minimum readnoise is set + internally to avoid computing a zero sigma and dividing by it. This + applies to the noise model rejection options. (8/11/95, Valdes) + +pkg/images/frmedian.hlp +pkg/images/frmode.hlp +pkg/images/rmedian.hlp +pkg/images/rmode.hlp +pkg/images/frmedian.par +pkg/images/frmode.par +pkg/images/rmedian.par +pkg/images/rmode.par +pkg/images/filters/frmedian.h +pkg/images/filters/frmode.h +pkg/images/filters/rmedian.h +pkg/images/filters/rmode.h +pkg/images/filters/t_frmedian.x +pkg/images/filters/t_frmode.x +pkg/images/filters/t_rmedian.x +pkg/images/filters/t_rmode.x +pkg/images/filters/frmedian.x +pkg/images/filters/frmode.x +pkg/images/filters/rmedian.x +pkg/images/filters/rmode.x +pkg/images/filters/med_utils.x + Added new ring median and modal filtering tasks frmedian, rmedian, + frmode, and rmode to the images package. + (6/20/95, Davis) + +pkg/images/fmedian.hlp +pkg/images/fmode.hlp +pkg/images/median.hlp +pkg/images/mode.hlp +pkg/images/fmedian.par +pkg/images/fmode.par +pkg/images/median.par +pkg/images/mode.par +pkg/images/filters/fmedian.h +pkg/images/filters/fmode.h +pkg/images/filters/median.h +pkg/images/filters/mode.h +pkg/images/filters/t_fmedian.x +pkg/images/filters/t_fmode.x +pkg/images/filters/t_median.x +pkg/images/filters/t_mode.x +pkg/images/filters/fmedian.x +pkg/images/filters/fmode.x +pkg/images/filters/median.x +pkg/images/filters/mode.x +pkg/images/filters/fmd_buf.x +pkg/images/filters/fmd_hist.x +pkg/images/filters/fmd_maxmin.x +pkg/images/filters/med_buf.x +pkg/images/filters/med_sort.x + Added minimum and maximum good data parameters to the fmedian, fmode, + median, and mode filtering tasks. Removed the 64X64 kernel size limit + in the median and mode tasks. Replaced the common blocks with structures + and .h files. + (6/20/95, Davis) + +pkg/images/geometry/t_geotran.x +pkg/images/geometry/geotran.x +pkg/images/geometry/geotimtran.x + Fixed a bug in the buffering of the x and y coordinate surface interpolants + which can cause a memory corruption error if, nthe nxsample or nysample + parameters are > 1, and the nxblock or nyblock parameters are less + than the x and y dimensions of the input image. Took the opportunity + to clean up the code. + (6/13/95, Davis) + +======= +V2.10.4 +======= + +pkg/images/geometry/t_geomap.x + Corrected a harmless typo in the code which determines the minimum + and maximum x values and improved the precision of the test when the + input is double precision. + (4/18/95, Davis) + +pkg/images/doc/fit1d.hlp + Added a description of the interactive parameter to the fit1d help page. + (4/17/95, Davis) + +pkg/images/imarith/t_imcombine.x + If an error occurs while opening an input image header the error + recovery will close all open images and then propagate the error. + For the case of running out of file descriptors with STF format + images this will allow the error message to be printed rather + than the error code. (4/3/95, Valdes) + +pkg/images/geometry/xregister/t_xregister.x + Added a test on the status code returned from the fitting routine so + the xregister tasks does not go ahead and write an output image when + the user quits the task in in interactive mode. + (3/31/95, Davis) + +pkg/images/imarith/icscale.x +pkg/images/doc/imcombine.hlp + The behavior of the weights when using both multiplicative and zero + point scaling was incorrect; the zero levels have to account for + the scaling. (3/27/95, Valdes) + +pkg/images/geometry/xregister/rgxtools.x + Changed some amovr and amovi calls to amovkr and amovki calls. + (3/15/95, Davis) + +pkg/images/geometry/t_imshift.x +pkg/images/geometry/t_magnify.x +pkg/images/geometry/geotran.x +pkg/images/geometry/xregister/rgximshift.x + The buffering margins set for the bicubic spline interpolants were + increased to improve the flux conservation properties of the interpolant + in cases where the data is undersampled. (12/6/94, Davis) + +pkg/images/xregister/rgxbckgrd.x + In several places the construct array[1++nx-wborder] was being used + instead of array[1+nx-wborder]. Apparently caused by a typo which + propagated through the code, the Sun compilers did not catch this, but + the IBM/RISC6000 compilers did. (11/16/94, Davis) + + +pkg/images/xregister.par +pkg/images/doc/xregister.hlp +pkg/images/geometry/xregister/t_xregister.x +pkg/images/geometry/xregister/rgxcorr.x +pkg/images/geometry/xregister/rgxicorr.x +pkg/images/geometry/xregister/rgxcolon.x +pkg/images/geometry/xregister/rgxdbio.x + The xregister task was modified to to write the output shifts file + in either text database format (the current default) or in simple text + format. The change was made so that the output of xregister could + both be edited more easily by the user and be used directly with the + imshift task. (11/11/94, Davis) + +pkg/images/imfit/fit1d.x + A Memc in the ratio output option was incorrectly used instead of Memr + when the bug fix of 11/16/93 was made. (10/14/94, Valdes) + +pkg/images/geometry/xregister/rgxcorr.x + The procedure rg_xlaplace was being incorrectly declared as an integer + procedure. + (8/1/94, Davis) + +pkg/images/geometry/xregister/rgxregions.x + The routine strncmp was being called (with a missing number of characters + argument) instead of strcmp. This was causing a bus error under solaris + but not sun os whenever the user set regions to "grid ...". (7/27/94 LED) + +pkg/images/tv/imexaine/ierimexam.x + The Gaussian fitting can return a negative sigma**2 which would cause + an FPE when the square root is taken. This will only occur when + there is no reasonable signal. The results of the gaussian fitting + are now set to INDEF if this unphysical result occurs. (7/7/94, Valdes) + +pkg/images/geometry/geofit.x + A routine expecting two char arrays was being passed two real arrays + instead resulting in a segmentation violation if calctype=real + and reject > 0. + (6/21/94, Davis) + +pkg/images/imarith/t_imarith.x + IMARITH now deletes the CCDMEAN keyword if present. (6/21/94, Valdes) + +pkg/images/imarith/icaclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/icpclip.gx +pkg/images/imarith/icsclip.gx + 1. The restoration of deleted pixels to satisfy the nkeep parameter + was being done inside the iteration loop causing the possiblity + of a non-terminating loop; i.e. pixels are rejected, they are + restored, and the number left then does not statisfy the termination + condition. The restoration step was moved following the iterative + rejection. + 2. The restoration was also incorrectly when mclip=no and could + lead to a segmentation violation. + (6/13/94, Valdes) + +pkg/images/geometry/xregister/rgxicorr.x + The path names to the xregister task interactive help files was incorrect. + (6/13/94, Davis) + +pkg/images/imarith/iccclip.gx +pkg/images/imarith/icsclip.gx + Found and fixed another typo bug. (6/7/94, Valdes/Zhang) + +pkg/images/imarith/icscale.x + The sigma scaling flag, doscale1, would not be set in the case of + a mean offset of zero though the scale factors could be different. + (5/25/94, Valdes/Zhang) + +pkg/images/imarith/icsclip.gx + There was a missing line: l = Memi[mp1]. (5/25/94, Valdes/Zhang) + +pkg/images/imarith/icaclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/icpclip.gx +pkg/images/imarith/icsclip.gx + The reordering step when a central median is used during rejection + but the final combining is average was incorrect if the number + of rejected low pixels was greater than the number of pixel + number of pixels not rejected. (5/25/94, Valdes) + +pkg/images/geometry/t_geotran.x + In cases where there was no input geomap database, geotran was + unnecessarily overiding the size of the input image requested by the + user if the size of the image was bigger than the default output size + (the size of the output image which would include all the input image + pixels is no user shifts were applied). + (5/10/94, Davis) + +pkg/images/imarith/icscale.x +pkg/images/imarith/t_imcombine.x + 1. There is now a warning error if the scale, zero, or weight type + is unknown. + 2. An sfree was being called before the allocated memory was finished + being used. + (5/2/94, Valdes) + +pkg/images/tv/imexaine/ierimexam.x + For some objects the moment analysis could fail producing a floating + overflow error in imexamine, because the code was trying to use + INDEF as the initial value of the object fwhm. Changed the gaussian + fitting code to use a fraction of the fitting radius as the initial value + for the fitted full-width half-maximum in cases where the moment analysis + cannot compute an initial value. + (4/15/94 LED) + +pkg/images/imarith/iclog.x + Changed the mean, median, mode, and zero formats from 6g to 7.5g to + insure 5 significant digits regardless of signs and decimal points. + (4/13/94, Valdes) + +pkg/images/doc/imcombine.hlp + Tried again to clarify the scaling as multiplicative and the offseting + as additive for file input and for log output. (3/22/94, Valdes) + +pkg/images/imarith/iacclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/iscclip.gx + The image sigma was incorrectly computed when an offset scaling is used. + (3/8/94, Valdes) + +pkg/images/doc/imcombine.hlp + The MINMAX example confused low and high. (3/7/94, Valdes) + +pkg/images/geometry/t_geomap.x +pkg/images/geometry/geofit.x +pkg/images/geometry/geograph.x + Fixed a bug in the geomap code which caused the linear portion of the transformation + to be computed incorrectly if the x and y fits had a different functional form. + (12/29/93, Davis) + +pkg/images/imarith/t_imcombine.x +pkg/images/imcombine.par +pkg/images/do/imcombine.hlp + The output pixel datatypes now include unsigned short integer. + (12/4/93, Valdes) + +pkg/images/doc/imcombine.hlp + Fixed an error in the example of offseting. (11/23/93, Valdes) + +pkg/images/imfit/fit1d.x + When doing operations in place the input and output buffers are the + same and the difference and ratio operations assumed they were not + causing the final results to be wrong. (11/16/93, Valdes) + +pkg/images/imarith/t_imarith.x +pkg/images/doc/imarith.hlp + If no calculation type is specified then it will be at least real + for a division. Since the output pixel type defaults to the + calculation type if not specified this will also result in a + real output if dividing two integer images. (11/12/93, Valdes) + +pkg/images/imarith/icgrow.gx +pkg/images/imarith/icpclip.gx +pkg/images/imarith/icsclip.gx +pkg/images/imarith/icaclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/t_imcombine.x +pkg/images/doc/imcombine.hlp + If there were fewer initial pixels than specified by nkeep then the + task would attempt to add garbage data to achieve nkeep pixels. This + could occur when using offsets, bad pixel masks, or thresholds. The + code was changed to check against the initial number of pixels rather + than the number of images. Also a negative nkeep is no longer + converted to a positive value based on the number of images. Instead + it specifies the maximum number of pixels to reject from the initial + set of pixels. (11/8/93, Valdes) + +======= +V2.10.2 +======= + +pkg/images/imarith/icsetout.x + Added MWCS calls to update the axis mapping when using the project + option in IMCOMBINE. (10/8/93, Valdes) + +pkg$images/imarith/icscale.x +pkg$images/doc/imcombine.hlp + The help indicated that user input scale or zero level factors + by an @file or keyword are multiplicative and additive while the + task was using then as divisive and subtractive. This was + corrected to agree with the intend of the documentation. + Also the factors are no longer normalized. (9/24/93, Valdes) + +pkg$images/imarith/icsetout.x + The case in which absolute offsets are specified but the offsets are + all the same did not work correctly. (9/24/93, Valdes) + +pkg$images/imfit/imsurfit.h +pkg$images/imfit/t_imsurfit.x +pkg$images/imfit/imsurfit.x +pkg$images/lib/ranges.x + Fixed two bugs in the imsurfit task bad pixel rejection code. For low + k-sigma rejections factors the bad pixel list could overflow resulting + in a segmentation violation or a hung task. Overlapping ranges were + not being decoded into a bad pixel list properly resulting in + oscillating bad pixel rejection behavior where certain groups of + bad pixels were alternately being included and excluded from the fit. + Both bugs are fixed in iraf 2.10.3 + (9/21/93, Davis) + +pkg$images/doc/imcombine.hlp + Clarified how bad pixel masks work with the "project" option. + (9/13/93, Valdes) + +pkg$images/imfit/fit1d.x + When the input and output images are the same there was an typo error + such that the output was opened separately but then never unmapped + resulting in the end of the image not being updated. (8/6/93, Valdes) + +pkg$images/imarith/t_imcombine.x + The algorithm for making sure there are enough file descriptors failed + to account for the need to reopen the output image header for an + update. Thus when the number of input images + output images + logfile + was exactly 60 the task would fail. The update occurs when the output + image is unmapped so the solution was to close the input images first + except for the first image whose pointer is used in the new copy of the + output image. (8/4/93, Valdes) + +pkg$images/filters/t_mode.x +pkg$images/filters/t_median.x + Fixed a bug in the error trapping code in the median and mode tasks. + The call to eprintf contained an extra invalid error code agument. + (7/28/93, Davis) + +pkg$images/geometry/geomap.par +pkg$images/geometry/t_geomap.x +pkg$images/geometry/geogmap.x +pkg$images/geometry/geofit.x + Fixed a bug in the error handling code in geomap which was producing + a segmentation violation on exit if the user's coordinate list + had fewer than 3 data points. Also improved the error messages + presented to the user in both interactive and non-interactive mode. + (7/7/93, Davis) + +pkg$images/imarith/icgdata.gx + There was an indexing error in setting up the ID array when using + the grow option. This caused the CRREJECT/CCDCLIP algorithm to + fail with a floating divide by zero error when there were non-zero + shifts. (5/26/93, Valdes) + +pkg$images/imarith/icmedian.gx + The median calculation is now done so that the original input data + is not lost. This slightly greater inefficiency is required so + that an output sigma image may be computed if desired. (5/10/93, Valdes) + +pkg$images/geometry/t_imshift.x + Added support for type ushort to the imshift task in cases where the + pixel shifts are integral. + (5/8/93, Davis) + +pkg$images/doc/rotate.hlp + Fixed a bug in the rotate task help page which implied that automatic + image size computation would occur if ncols or nlines were set no 0 + instead of ncols and nlines. + (4/17/93, Davis) + +pkg$images/imarith/imcombine.gx + There was no error checking when writing to the output image. If + an error occurred (the example being when an imaccessible imdir was + set) obscure messages would result. Errchks were added. + (4/16/93, Valdes) + +pkg$images/doc/gauss.hlp + Fixed 2 sign errors in the equations in the documentation describing + the elliptical gaussian fucntion. + (4/13/92, Davis) + +pkg/images/imutil/t_imslice.x + Removed an error check in the imslice task, which was preventing it from + being used to reduce the dimensionality of images where the length of + the slice dimension is 1.0. + (2/16/83, Davis) + +pkg/images/filters/fmedian.x + The fmedian task was printing debugging information under iraf 2.10.2. + (1/25/93, Davis) + +pkg/images/imarith/icaclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/icpclip.gx +pkg/images/imarith/icsclip.gx + When using mclip=yes and when more pixels are rejected than allowed by + the nkeep parameter there was a subtle bug in how the pixels are added + back which can result in a segmentation violation. + if (nh == n2) ==> if (nh == n[i]) + (1/20/93, Valdes) + + +======= +V2.10.1 +======= + +pkg/images/imarith/t_imcombine.x +pkg/images/imarith/icaclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/icgrow.gx +pkg/images/imarith/iclog.x +pkg/images/imarith/icombine.com +pkg/images/imarith/icombine.gx +pkg/images/imarith/icombine.h +pkg/images/imarith/icpclip.gx +pkg/images/imarith/icscale.x +pkg/images/imarith/icsclip.gx +pkg/images/imarith/icsetout.x +pkg/images/imcombine.par +pkg/images/doc/combine.hlp + The weighting was changed from using the square root of the exposure time + or image statistics to using the values directly. This corresponds + to variance weighting. Other options for specifying the scaling and + weighting factors were added; namely from a file or from a different + image header keyword. The \fInkeep\fR parameter was added to allow + controlling the maximum number of pixels to be rejected by the clipping + algorithms. The \fIsnoise\fR parameter was added to include a sensitivity + or scale noise component to the noise model. Errors will now delete + the output image. + (9/30/92, Valdes) + +pkg/images/imutil/imcopy.x + Added a call to flush after the status line printout so that the output + will appear immediately. (8/19/92, Davis) + +pkg/images/filters/mkpkg +pkg/images/filters/t_fmedian.x +pkg/images/filters/fmedian.x +pkg/images/filters/fmd_buf.x +pkg/images/filters/fmd_maxmin.x + The fmedian task could crash with a segmentation violation if mapping + was turned off (hmin = zmin and hmax = zmax) and the input image + contained data outside the range defined by zmin and zmax. (8/18/92, Davis) + +pkg/images/imarith/icaclip.gx +pkg/images/imarith/iccclip.gx +pkg/images/imarith/icpclip.gx +pkg/images/imarith/icsclip.gx + There was a very unlikely possibility that if all the input pixels had + exactly the same number of rejected pixels the weighted average would + be done incorrectly because the dflag would not be set. (8/11/92, Valdes) + +pkg/images/imarith/icmm.gx + This procedure failed to set the dflag resulting in the weighted average + being computed in correctly. (8/11/92, Valdes) + +pkg/images/imfit/fit1d.x + At some point changes were made but not documented dealing with image + sections on the input/output. The changes seem to have left off the + final step of opening the output image using the appropriate image + sections. Because of this it is an error to use an image section + on an input image when the output image is different; i.e. + + cl> fit1d dev$pix[200:400,*] junk + + This has now been fixed. (8/10/92, Valdes) + +pkg/images/imarith/icscales.x + The zero levels were incorrectly scaled twice. (8/10/92, Valdes) + +pkg/images/imarith/icstat.gx + Contained the statement + nv = max (1., (Memi[v2+i] - Memi[v1+i]) / Memi[dv+i] + 1) + which is max(real,int). Changed the 1. to a 1. (8/10/92, Valdes) + +pkg$images/imarith/icaclip.gx +pkg$images/imarith/iccclip.gx +pkg$images/imarith/icsclip.gx + These files contained multiple cases (ten or so) of constructs such as + "max (1., ...)" or "max (0., ...)" where the ... could be either real + or double. In the double cases the DEC compiler complained about a + type mismatch since 1. is real. (8/10/92, Valdes) + +pkg$images/imfit/t_imsurfit.x + Fixed a bug in the section reading code. Imsurfit is supposed to switch + the order of the section delimiters in x and y if x2 < x1 or y2 < 1. + Unfortunately the y test was actually "if (y2 < x1)" instead of + "if (y2 < y1)". Whether or not the code actually works correctly + depends on the value of x1 relative to y2. This bug was not present + in 2.9.1 but is present in subsequent releases. (7/30/92 LED) + +======= +V2.10.1 +======= + +pkg$images/filters/t_gauss.x + The case theta=90 and ratio > 0.0 but < 1.0 was producing an incorrect + convolution if bilinear=yes, because the major axis sigmas being + input along the x and y axes were sigma and ratio * sigma respectively + instead of ratio * sigma and sigma in this case. + +pkg$images/imutil/imcopy.x + Modified imcopy to write its verbose output to STDOUT instead of + STDERR. (6/24/92, Davis) + +pkg$images/imarith/imcombine.gx + The step where impl1$t is called to check if there is enough memory + did not set the return buffer because the values are irrelevant for + this check. However, depending on history, this buffer could have + arbitrary values and later when IMIO attempts to flush this buffer, + at least in the case of image type coersion, cause arithmetic errors. + The fix was to clear the returned buffers. (4/27/92, Valdes) + +pkg$images/imutil/t_imstack.x + Modified the imslice task to read the old and write a new axis map. + (4/23/92, Davis) + +pkg$images/geometry/t_imslice.x + Modified the imslice task to read the old and write a new axis map. + (4/23/92, Davis) + +pkg$images/geometry/t_blkavg.x +pkg$images/geometry/t_blkrep.x + Modified the calls to mw_shift and mw_scale to explicitly set the + number of logical axes instead of using the default of 0. + (4/23/92, Davis) + +pkg$images/geometry/t_imtrans.x + Modified imtranspose so that it correctly picks up the axis map + and writes it to the output image wcs. (4/23/92, Davis) + +pkg$images/register.par +pkg$images/geotran.par +pkg$images/doc/register.hlp +pkg$images/doc/geotran.hlp + Changed the default values of the parameters xscale and yscale in + the register and geotran tasks from INDEF to 1.0 (4/23/92, Davis) + +pkg$images/geometry/t_imtrans.x +pkg$images/doc/imtranspose.hlp + Modified the imtranspose task so it does a true transpose of the + axes instead of simply modifying the lterm. (4/8/92, Davis) + +pkg$images/iminfo/listpixels.x + Added the formats parameter for formatting the output pixel coordinates + to the listpixels task. These formats take precedence over the formats + stored in the WCS in the image header and the previous default format. + (4/7/92, Davis) + +pkg$images/imutil/t_imstack.x + Added wcs support to the imstack task. (4/2/92, Davis) + +pkg$images/iminfo/listpixels.x + Modified listpixels so that it will work correctly if the dimension + of the wcs is less than the dimension of the image. (3/16/92, Davis) + +pkg$images/geometry/t_geotran.x + Modified the rotate, imlintran, register and geotran tasks wcs updating + code to deal correclty with dimensionally reduced data. (3/16/92, Davis) + +pkg$images/imarith/icalip.gx +pkg$images/imarith/icclip.gx +pkg$images/imarith/ipslip.gx +pkg$images/imarith/icslip.gx +pkg$images/imarith/icmedian.gx + The median calculation with an even number of points for short data + could overflow (addition of two short values) and be incorrect. + (3/16/92, Valdes) + +pkg$images/geometry/t_blkavg.x +pkg$images/geometry/t_blkrep.x + 1. Improved the precision of the blkavg task wcs updating code. + 2. Changed the blkrep task wcs updating code so that it is consistent + with blkavg. This means that a blkrep command followed by a blkavg + command or vice versa will return the original coordinate system + to within machine precision. (3/16/92, Davis) + +pkg$images/iminfo/listpixels.x + Modified listpixels to print out an error if it could not open the + wcs in the image. (3/15/92, Davis) + +pkg$images/geometry/t_magnify.x + Fixed a bug in the magnify task wcs updating code which was not + working correctly for dimensionally reduced images. (3/15/92, Davis) + +pkg$images/geometry/t_imtrans.x + Fixed a bug in the imtranspose task wcs updating code which was not + working correctly for dimensionally reduced images. (3/14/92, Davis) + +pkg$images/imarith/icalip.gx +pkg$images/imarith/icclip.gx +pkg$images/imarith/icslip.gx + There was a bug allowing the number of valid pixels counter to become + negative. Also there was a step which should not be done if the + number of valid pixels is less than 1; i.e. all pixels rejected. + A test was put in to skip this step. (3/13/92, Valdes) + +pkg$images/iminfo/t_imslice.x +pkg$images/doc/imslice.hlp + Added wcs support to the imslice task. + (3/12/92, Davis) + +pkg$images/iminfo/t_imstat.x + Fixed a bug in the code for computing the standard deviation, kurtosis, + and skew, wherein precision was being lost because two of the intermediate + variables in the computation were real instead of double precision. + (3/10/92, Davis) + +pkg$images/iminfo/listpixels.x + 1. Modified listpixels task to use the MWCS axis "format" attributes + if they are present in the image header. + 2. Added support for dimensionally reduced images, i.e. + images which are sections of larger images and whose coordinate + transformations depend on the reduced axes, to the listpixels task. + (3/6/92, Davis) + +pkg$images/imarith/t_imcombine.x +pkg$images/imarith/icsetout.x + Changed error messages to say IMCOMBINE instead of ICOMBINE. + (3/2/92, Valdes) + +pkg$images/imarith/iclog.x + Added listing of read noise and gain. (2/10/92, Valdes) + +pkg$images/imarith/icscale.x +pkg$images/imarith/icpclip.gx + 1. Datatype declaration for asumi was incorrect. + 2. Reduced the minimum number of images allowed for PCLIP to 3. + (1/7/92, Valdes) + +pkg$images/imarith/icgrow.gx + The first pixel to be checked was incorrectly set to 0 instead of 1 + resulting in a segvio when using the grow option. (12/6/91, Valdes) + +pkg$images/imarith/icgdata.gx +pkg$images/imarith/icscale.x + Fixed datatype declaration errors found by SPPLINT. (11/22/91, Valdes) + +pkg$images/iminfo/t_imstat.x + Fixed a bug in the kurtosis computation found by ST. + (Davis 10/11/91) + +pkg$images/iminfo/t_imstat.x +pkg$images/doc/imstat.hlp + Corrected a bug in the mode computation in imstatistics. The parabolic + interpolation correction for computing the histogram peak was being + applied in the wrong direction. Note that for dev$pix the wrong answer + is actually closer to the expected answer than the correct answer + due to binning effects. + (Davis 9/24/91) + +pkg$images/filters/t_gauss.x + The code which computes the gaussian kernel was producing a divide by + zero error if ratio=0.0 and bilinear=yes (2.10 version only). + (Davis 9/18/91) + +pkg$images/doc/magnify.hlp + Corrected a bug in the magnify help page. + (Davis 9/18/91) + +pkg$images/imarith/icsclip.gx +pkg$images/imarith/icaclip.gx +pkg$images/imarith/iccclip.gx + There was a typo, Memr[d[k]+k] --> Memr[d[j]+k]. (9/17/91, Valdes) + +pkg$images/imarith/icstat.gx +pkg$images/imarith/icmask.x + The offsets were used improperly in computing image statistics. + (Valdes, 9/17/91) + +pkg$images/geometry/t_imshift.x + The shifts file pointer was not being correctly initialized to NULL + in the case where no shifts file was declared. When the task + was invoked repeatedly from a script, this could result in an array being + referenced, for which space had not been previously allocated. + (Davis 7/29/91) + +pkg$images/imarith/imc* - +pkg$images/imarith/ic* + +pkg$images/imarith/t_imcombine.x +pkg$images/imarith/mkpkg +pkg$images/imarith/generic/mkpkg +pkg$images/imcombine.par +pkg$images/doc/imcombine.hlp + Replaced old version of IMCOMBINE with new version supporting masks, + offsets, and new algorithms. (Valdes 7/19/91) + +pkg$images/iminfo/imhistogram.x + Imhistogram has been modified to print the value of the middle of + histogram bin instead of the left edge if the output type is list + instead of plot. (Davis 6/11/91) + +pkg$images/t_imsurfit.x + Modified the sections file reading code to check the order of the + x1 x2 y1 y2 parameters and switch (x1,x2) or (y1,y2) if x2 < x1 or + y2 < y1 respectively. (Davis 5/28/91) + +pkg$images/listpixels.par +pkg$images/iminfo/listpixels.x +pkg$images/doc/listpixels.hlp + Modified the listpixels task to be able to print the pixel coordinates + in logical, physical or world coordinates. The default coordinate + system is still logical as before. (Davis 5/17/91) + +pkg$images/images.par +pkg$images/doc/minmax.hlp +pkg$images/imutil/t_minmax.x +pkg$images/imutil/minmax.x + Minmax was modified to do the minimum and maximum values computations + in double precision or complex instead of real if the input image + pixel type is double precision or complex. Note that the minimum and + maximum header values are still stored as real however. + (Davis 5/16/91) + +imarith/t_imarith.x + There was a missing statement to set the error flag if the image + dimensions did not match. (5/14/91, Valdes) + +doc/imarith.hlp + Fixed some formatting problems in the imarith help page. (5/2/91 Davis) + +imarith$imcombine.x + Changed the order in which images are unmapped to have the output images + closed last. This is to allow file descriptors for the temporary image + used when updating STF headers. (4/22/91, Valdes) + +pkg$images/geometry/t_blkavg.x +pkg$images/geometry/blkavg.gx +pkg$images/geometry/blkavg.x + The blkavg task was partially modified to support complex image data. + The full modifications cannot be made because of an error in abavx.x + and the missing routine absux.x. + (4/18/91 Davis) + +pkg$images/geometry/geofit.x + The x and y fits cross-terms switch was not being set correctly to "yes" + in the case where xxorder=2 and xyorder=2 or in the case where yxorder=2 + and yyorder=2. + (4/9/91 Davis) + +pkg$images/geometry/geogmap.x + Modified the line which prints the geometric parameters to use the + variable name xshift and yshift instead of delx and dely. + (4/9/91 Davis) + +pkg$images/imfit/imsurfit.x + Fixed a bug in the pixel rejection code which occurred when upper was > + 0.0 and lower = 0.0 or lower > 0 and upper = 0.0. The problem was that + the code was simply setting the rejection limits to the computed sigma + times the upper and lower parameters without checking for the 0.0 + condition first. In the first case this results in all points with + negative residuals being rejected and in the latter all points with + positive residuals are rejected. + (2/25/91 Davis) + +pkg$images/doc/hedit.hlp +pkg$images/doc/hselect.hlp +pkg$images/doc/imheader.hlp +pkg$images/doc/imgets.hlp + Added a reference to imgets in the SEE ALSO sections of the hedit and + hselect tasks. + Added a reference to hselect and hedit in the SEE ALSO sections of the + imheader and imgets tasks. + (2/22/91 Davis) + +pkg$images/gradient.hlp +pkg$images/laplace.hlp +pkg$images/gauss.hlp +pkg$images/convolve.hlp +pkg$images/gradient.par +pkg$images/laplace.par +pkg$images/gauss.par +pkg$images/convolve.par +pkg$images/t_gradient.x +pkg$images/t_laplace.x +pkg$images/t_gauss.x +pkg$images/t_convolve.x +pkg$images/convolve.x +pkg$images/xyconvolve.x +pkg$images/radcnv.x + The convolution operators were modified to run more efficiently in + certain cases. The LAPLACE task was modified to make use of the + radial symmetry of the convolution kernel in the y direction as well + as the x direction resulting in a modest speedup in execution time. + A new parameter bilinear was added to the GAUSS and CONVOLVE tasks. + By default and if appropriate mathematically, GAUSS now makes use of + the bilinearity or separability of the Gaussian function, + to separate the 2D convolution in x and y into two equivalent + 1D convolutions in x and y, resulting in a considerable speedup + in execution time. Similarly the user can know program CONVOLVE to + compute a bilinear convolution instead of a full 2D 1 if appropriate. + (1/29/91 Davis) + +pkg$images/filters/t_convolve.x + CONVOLVE was not decoding the legal 1D kernel "1.0 2.0 1.0" correctly + although the alternate form "1.0 2.0 1.0;" worked. Leading + blanks in string kernels as in for example " 1.0 2.0 1.0" also generated + and error. Fixed these bugs and added some additional error checking code. + (11/28/90 Davis) + +pkg$images/doc/gauss.hlp + Added a detailed mathematical description of the gaussian kernel used + by the GAUSS task to the help page. + +pkg$images/images.hd +pkg$images/rotate.cl +pkg$images/imlintran.cl +pkg$images/register.cl +pkg$images/register.par + Added src="script file name" entries to the IMAGES help database + for the tasks ROTATE, IMLINTRAN, and REGISTER. Changed the CL + script for REGISTER to a procedure script to remove the ugly + local variable declarations. Added a few comments to the scripts. + (12/11/90, Davis) + +pkg$images/iminfo/imhistogram.x + Added a new parameter binwidth to imhistogram. If binwidth is defined + it determines the histogram resolution in intensity units, otherwise + nbins determines the resolution as before. (10/26/90, Davis) + +pkg$images/doc/sections.hlp + Clarified what is meant by an image template and that the task itself + does not check whether the specified names are actually images. + The examples were improved. (10/3/90, Valdes) + +pkg$images/doc/fit1d.hlp + Changed lines to columns in example 2. (10/3/90, Valdes) + +pkg$images/imarith/imcscales.x + When an error occured while parsing the mode section the untrapped error + caused further problems downstream. Because it would require adding + lots of errchks to cause the program to gracefully abort I instead made + it a warning. (10/2/90, Valdes) + +pkg$images/imutil/hedit.x + Hedit was computing but not using min_lenarea. If the user specified + a min_lenuserarea greater than the default of 28800 then the default + was being used instead of the larger number. + +pkg$imarith/imasub.gx + The case of subtracting an image from the constant zero had a bug + which is now fixed. (8/14/90, Valdes) + +pkg$images/t_imtrans.x + Modified the imtranspose task so it will work on type ushort images. + (6/6/90 Davis) + +pkg$images + Added world coordinate system support to the following tasks: imshift, + shiftlines, magnify, imtranspose, blkrep, blkavg, rotate, imlintran, + register and geotran. The only limitation is that register and geotran + will only support simple linear transformations. + (2/24/90 Davis) + +pkg$images/geometry/geotimtran.x + Fixed a problem in the boundary extension "reflect" option code for small + images which was causing odd values to be inserted at the edges of the + image. + (2/14/90 Davis) + +pkg$images/iminfo/imhistogram.x + A new parameter "hist_type" was added to the imhistogram task giving + the user the option of plotting the integral, first derivative and + second derivative of the histogram as well as the normal histogram. + Code was contributed by Rob Seaman. + (2/2/90 Davis) + +pkg$images/geometry/geogmap.x + The path name of the help file was being erroneously renamed with + the result that when users ran the double precision version of the + code they could not find the help file. + (26/1/90 Davis) + +pkg$images/filters/t_boxcar.x,t_convolve.x + Added some checks for 1-D images. + (1/20/90 Davis) + +pkg$images/iminfo/t_imstat.x,imstat.h + Made several minor bug fixes and alterations in the imstatistics task + in response to user complaints and suggestions. + + 1. Changed the verbose parameter to the format parameter. If format is + "yes" (the default) then the selected fields are printed in fixed format + with column labels. Other wise the fields are printed in free format + separated by 2 blanks. This fixes the problem of fields running together. + + 2. Fixed a bug in the code which estimates the median from the image + histogram by linearly interpolating around the midpt of the integrated + histogram. The bug occurred when more than half the pixels were in the + first bin. + + 3. Added a check to ensure that the number of fields did not overflow + the fields array. + + 4. Removed the extraneous blank line printed after the title. + + 5. The pound sign is now printed at the beginning of the column header + string regardless of which field is printed first. In the previous + versions it was only being printed if the image name field was + printed first. + + 6. Changed the name of the median field to midpt in response to user + confusions about how the median is computed. + + (1/20/90, Davis) + +pkg$images/imutil/t_imslice.hlp + The imslice was not correctly computing the number of lines in the + output image in the case where the slice dimension was 1. + (12/4/89, Davis) + +pkg$images/doc/imcombine.hlp + Clarified and documented definitions of the scale, offset, and weights. + (11/30/89, Valdes) + +pkg$images/geometry/geotran.x + High order surfaces of a certain functional form could occasionally + produce out of bounds pixel errors. The bug was caused by not properly + computing the distortion of the image boundary for higher order + surfaces. + (11/21/89, Davis) + +pkg$images/geometry/imshift.x + The circulating buffer space was not being freed after each execution + of IMSHIFT. This did not cause an error in execution but for a long + list of frames could result in alot of memory being tied up. + (10/25/89, Davis) + +pkg$images/imarith/t_imarith.x + IMARITH is not prepared to deal with images sections in the output. + It used to look for '[' to decide if the output specification included + and image section. This has been changed to call the IMIO procedure + imgsection and check if a non-null section string is returned. + Thus it is up to IMIO to decide what part of the image name is + an image section. (9/5/89, Valdes) + +pkg$images/imarith/imcmode.gx + Fixed bug causing infinite loop when computing mode of constant value + section. (8/14/89, Valdes) + +==== +V2.8 +==== + +pkg$images/iminfo/t_imstat.x + Davis, Jun 15, 1989 + Added a couple of switches to that skew and kurtosis are not computed + if they are not to be printed. + +pkg$images/iminfo/t_imstat.x + Davis, Jun 14, 1989 + A simple mod was made to the skew and kurtosis computation to avoid + divide by zero errors in case of underflow. + +pkg$images/imutil/chpixtype.par + Davis, Jun 13, 1989 + The parameter file has been modified to accept an output pixel + type of ushort. + +pkg$images/imarith/imcombine.gx + Valdes, Jun 2, 1989 + A new scheme to detect file errors is now used. + +pkg$images/imfit/t_imsurfit.x + Davis, Jun 1, 1989 + 1. If the user set regions = "sections" but the sections file + did not exist the task would go into an infinite loop. The problem + was a missing error check on the open statement. + +pkg$images/iminfo/imhistogram.x,imhistogram.par + Davis, May 31, 1989 + A new version of imhistogram has been installed. These mods have + been made over a period of a month by Doug Tody and Rob Seaman. + The mods include + 1. An option to turn off log scaling of the y axis of the histogram plot. + 2. A new autoscale parameter which avoids aliasing problems for integer + data. + 3. A new parameter top_close which resolves the ambiguity in the top + bin of the histogram. + +pkg$images/imarith/imcombine.gx + Valdes, May 9, 1989 + Because a file descriptor was not reserved for string buffer operations + and a call to stropen in cnvdate was not error checked the task would + hang when more than 115 images were combined. Better error checking + was added and now an error message is printed when the maximum number + of images that can be combined is exceeded. + +pkg$images/imarith/t_imarith.x + Valdes, May 6, 1989 + Operations in which the output image has an image section are now + skipped with a warning message. + +pkg$images/imarith/sigma.gx +pkg$images/imarith/imcmode.gx + Valdes, May 6, 1989 + 1. The weighted sigma was being computed incorrectly. + 2. The argument declarations were wrong for integer input images. + Namely the mean vector is always real. + 3. Minor change to imcmode.gx to return correct datatype. + +pkg$images/imstack,imslice + Davis, April 1, 1989 + The proto images tasks imstack and imslice have been moved from the + proto package to the images package. Imstack is unchanged except that + it now supports the image data types USHORT and COMPLEX. Imslice has + been modified to allow slicing along any dimension of the image instead + of just the highest dimension. + +pkg$images/imstatistics. + Davis, Mar 31, 1989 + 1. A totally new version of the imstatistics task has been written + and replaces the old version. The new task allows the user to select + which statistical parameters to compute and print. These include + the mean, median, mode, standard deviation, skew, kurtosis and the + minimum and maximum pixel values. + +pkg$images/imhistogram.par +pkg$images/iminfo/imhistogram.x +pkg$images/doc/imhistogram.hlp + Davis, Mar 31, 1989 + 1. The imhistogram task has been modified to plot "box" style histograms + as well as "line" type histograms. Type "line" remains the default. + +pkg$images/geometry/geotran.par,register.par,geomap.par +pkg$images/doc/geomap.hlp,register.hlp,geotran.hlp + Davis, Mar 6, 1989 + 1. Improved the parameter prompting in GEOMAP, REGISTER and GEOTRAN + and improved the help pages. + 2. Changed GEOMAP database quantities "xscale" and "yscale" to "xmag" + and "ymag" for consistency . Geotran was changed appropriately. + +pkg$images/imarith/imcmode.gx + For short data a short variable was wraping around when there were + a significant number of saturated pixels leading to an infinite loop. + The variables were made real regardless of the image datatype. + (3/1/89, Valdes) + +pkg$images/imutil/imcopy.x + Davis, Feb 28, 1989 + 1. Added support for type USHORT to the imcopy task. This is a merged + ST modification. + +pkg$images/imarith/imcthreshold.gx +pkg$images/imcombine.par +pkg$images/doc/imcombine.hlp +pkg$images/imarith/imcscales.x + Valdes, Feb 16, 1989 + 1. Added provision for blank value when all pixels are rejected by the + threshold. + 2. Fixed a bug that was improperly scaling images in the threshold option. + 3. The offset printed in the log now has the opposite sign so that it + is the value "added" to bring images to a common level. + +pkg$images/imfit/imsurfit.x + Davis, Feb 23, 1989 + Fixed a bug in the median fitting code which could cause the porgram + to go into an infinite loop if the region to be fitted was less than + the size of the whole image. + +pkg$images/geometry/t_magnify.x + Davis, Feb 16, 1989 + Modified magnify to work on 1D images as well as 2D images. The + documentation has been updated. + +pkg$images/geometry/t_geotran.x + Davis, Feb 15, 1989 + Modified the GEOTRAN and REGISTER tasks so that they can handle a list + of transform records one for each input image. + +pkg$images/imarith/imcmode.gx + Valdes, Feb 8, 1989 + Added test for nx=1. + +pkg$images/imarith/t_imcombine.x + Valdes, Feb 3, 1989 + The test for the datatype of the output sigma image was wrong. + +pkg$images/iminfo/listpixels.x,listpixels.par + Davis, Feb 6, 1989 + The listpixels task has been modified to print out the pixels for a + list of images instead of a single image only. A title line for each + image listed can optionally be printed on the standard output if + the new parameter verbose is set to yes. + +pkg$images/geometry/t_imshift.x + Davis, Feb 2, 1989 + Added a new parameter shifts_file to the imshift task. Shifts_file + is the name of a text file containing the the x and yshifts for + each input image to be shifted. The number of input shifts must + equal the number of input images. + +pkg$images/geometry/t_geomap.x + Davis, Jan 17, 1989 + Added an error message for the case where the coordinates is empty + of there are no points in the specified data range. Previously the + task would proceed to the next coordinate file without any message. + +pkg$images/geometry/t_magnify.x + Davis, Jan 14, 1989 + Added the parameter flux conserve to the magnify task to bring it into + line with all the other geometric transformation tasks. + +pgk$images/geometry/geotran.x,geotimtran.x + Davis, Jan 2, 1989 + A bug was fixed in the flux conserve code. If the x and y reference + coordinates are not in pixel units and are not 1 then + the computed flux per pixel was too small by xscale * yscale. + +pkg$images/filters/acnvrr.x,convolve.x,boxcar.x,aboxcar.x + Davis, Dec 27, 1988 + I changed the name of the acnvrr procedure to cnv_radcnvr to avoid + a name conflict with a vops library procedure. This only showed + up when shared libraries were implemented. I also changed the name + of the aboxcarr procedure to cnv_aboxr to avoid conflict with the + vops naming conventions. + +pkg$images/imarith/imcaverage.gx + Davis, Dec 22, 1988 + Added an errchk statement for imc_scales and imgnl$t to stop the + program bombing with segmentation violations when mode <= 0. + +pkg$images/imarith/imcscales.x + Valdes, Dec 8, 1988 + 1. IMCOMBINE now prints the scale as a multiplicative quantity. + 2. The combined exposure time was not being scaled by the scaling + factors resulting in a final exposure time inconsistent with the + data. + +pkg$images/iminfo/imhistogram.x + Davis, Nov 30, 1988 + Changed the list+ mode so that bin value and count are printed out instead + of bin count and value. This makes the plot and list modes compatable. + +pkg$images/iminfo/t_imstat.x + Davis, Nov 17, 1988 + Added the n=n+1 back into the inner loop of imstat. + +pkg$images/geotran.par,register.par + Davis, Nov 11 , 1988 + Fixed to glaring errors in the parameter files for register and geotran. + Xscale and yscale were described as pixels per reference unit when + they should be reference units per pixel. The appropriate bug fix has been + made. + +pkg$images/geometry/t_geotran.x + Davis, November 7, 1988 + The routine gsrestore was not being error checked. If either of the + input x or y coordinate surface was linear and the other was not, + the message came back GSRESTORE: Illegal x coordinate. This bug has + been fixed. + +pkg$images/imarith/imcombine.gx + Valdes, October 19, 1988 + A vops clear routine was not called generically causing a crash with + double images. + +pkg$images/filters/t_fmedian.x,t_median.x,t_fmode.x,t_mode.x,t_gradient.x + t_gauss.x,t_boxcar.x,t_convolve.x,t_laplace.x + Davis, October 4, 1988 + I fixed a bug in the error handling code for the filters tasks. If + and error occurred during task execution and the input image name was + the same as the output image name then the input image was trashed. + +pkg$images/imarith/imcscales.gx + Valdes, September 28, 1988 + It is now an error for the mode to be nonpositive when scaling or weighting. + +pkg$images/imarith/imcmedian.gx + Valdes, August 16, 1988 + The median option was selecting the n/2 value instead of (n+1)/2. Thus, + for an odd number of images the wrong value was being determined for the + median. + +pkg$images/geometry/t_imshift.x + Davis, August 11, 1988 + 1. Imshift has been modified to uses the optimized code if nearest + neighbour interpolation is requested. A nint is done on the shifts + before calling the quick shift routine. + 2. If the requested pixel shift is too large imshift will now + clean up any pixelless header files before continuing execution. + +pkg$images/geometry/blkavg.gx + Davis, July 13, 1988 + Blkavg has been fixed so that it will work on 1D images. + +pkg$images/geometry/t_imtrans.x,imtrans.x + Davis, July 12, 1988 + Imtranspose has been modified to work on complex images. + +pkg$images/imutil/t_chpix.x + Davis, June 29, 1988 + A new task chpixtype has been added to the images package. Chpixtype + changes the pixel types of a list of images to a specified output pixel + type. Seven data types are supported "short", "ushort", "int", "long" + "real" and "double". + +pkg$images/geometry/rotate.cl,imlintran.cl,t_geotran.x + Davis, June 10, 1988 + The rotate and imlintran scripts have been rewritten to use procedure + scripts. This removes all the annoying temporary cl variables which + appear when the user does an lpar. In previous versions of these + two tasks the output was restricted to being the same size as the input + image. This is still the default case, but the user can now set the + ncols and nrows parameters to the desired output size. I ncols or nlines + < 0 then then the task compute the output image size required to contain + the whole input image. + +pkg$images/filters/t_convolve.x,t_laplace.x,t_gradient.x,t_gauss.x,convolve.x + Davis, June 1, 1988 + The convolution operators laplace, gauss and convolve have been modified + to make use of radial symmetry in the convolution kernel. In gauss and + laplace the change is transparent to the user. For the convolve operator + the user must indicate that the kernel is radially symmetric by setting + the parameter radsym. For kernels of 7 by 7 or greater the speedup + in timings is on the order of 30% on the Vax 750 with the fpa. + +pkg$images/imarith/imcmode.gx + Valdes, Apr 11, 1988 + 1. The use of a mode sections was handled incorrectly. + +pkg$images/imfit/fit1d.x + Valdes, Jan 4, 1988 + 1. Added an error check for a failure in IMMAP. The missing error check + caused FIT1D to hang when a bad input image was specified. + +pkg$images/magnify.par +pkg$images/imcombine.par +pkg$images/imarith/imcmode.gx +pkg$images/doc/imarith.hlp + Valdes, Dec 7, 1987 + 1. Added option list to parameter prompts. + 2. Fixed minor typo in help page + 3. The mode calculation in IMCOMBINE would go into an infinite loop + if all the pixel values were the same. If all the pixels are the + same them it skips searching for the mode and returns the constant + number. + +pkg$images/geometry/geotimtran.x + Davis, Nov 25, 1987 + 1. A bug in the boundary extension = wrap option was found in the + IMLINTRAN task. The problem occured in computing values for out of + bounds pixels in the range 0.0 < x < 1.0, ncols < x < ncols + 1.0, + 0.0 < y < 1.0 and nlines < y < nlines + 1. The computed coordinates + were falling outside the boundaries of the interpolation array. + +pkg$images/geometry/t_geomap.x,geograph.x + Davis, Nov 19, 1987 + 1. The geomap task now writes the name of the output file into the database. + 2. Rotation angles of 360. degrees have been altered to 0 degrees. + +pkg$images/imfit/t_imsurfit.x,imsurfit.x +pkg$images/lib/ranges.x + Davis, Nov 2, 1987 + A bug in the regions fitting option of the IMSURFIT task has been found + and fixed. This bug would occur when the user set the regions parameter + to sections and then listed section which overlapped each other. The + modified ranges package was not handling the overlap correctly and + computing a number of points which was incorrect. + +pkg$images/imarith/* + + Valdes, Sep 30, 1987 + The directory was reorganized to put generic code in the subdirectory + generic. + + A new task called IMCOMBINE has been added. It provides for combining + images by a number of algorithms, statistically weighting the images + when averaging, scaling or offsetting the images by the exposure time + or image mode before combining, and rejecting deviant pixels. It is + almost fully generic including complex images and works on images of + any dimension. + +pkg$images/geometry/geotran.x + Davis, Sept 3, 1987 + A bug in the flux conserving algorithm was found in the geotran code. + The symptom was that the flux of the output image occasionally was + negative. This would happen when two conditions were met, the transformation + was of higher order than a simple rotation, magnification, translation + and an axis flip was involved. The mathematical interpretation of this + bug is that the coordinate surface had turned upside down. The solution + for people running systems with this bug is to multiply there images + by -1. + +pkg$images/imfit/imsurfit.h,t_imsurfit.x + Davis, Aug 6, 1987 + A new option was added to the parameter regions in the imsurfit task. + Imsurfit will now fit a surface to a single circular region defined + by an x and y center and a radius. + +pkg$images/geometry/geotimtran.x + Davis, Jun 15, 1987 + Geotran and register were failing when the output image number of rows + and columns was different from the input number of rows and columns. + Geotran was mistakenly using the input images sizes to determine the + number of output lines that should be produced. The same problem occurred + when the values of the boundary pixels were being computed. The program + was using the output image dimensions to compute the boundary pixels + instead of the input image dimensions. + +pkg$images/geometry/geofit.x,geogmap.x + Davis, Jun 11, 1987 + A bug in the error checking code in the geomap task was fixed. The + condition of too few points for a reasonable was not being trapped + correctly. The appropriate errchk statements were added. + +pkg$images/geomap.par + Davis, Jun 10, 1987 + The default fitting function was changed to polynomial. This will satisfy + most users who wish to do shifts, rotations, and magnifications and + avoid the neccessity of correctly setting the xmin, xmax, ymin, and ymax + parameters. For the chebyshev and legendre polynomial functions these + parameters must be explicitly set. For reference coordinates in pixel + units the normal settings are 1, ncols, 1 and nlines respectively. + +pkg$images/iminfo/hselect.x,imheader.x,images$/imutil/hselect.x + Davis, Jun 8, 1987 + Imheader has been modified to open an image with the default min_lenuserarea + Hselect and hedit will now open the image setting the user area to the + maximum of 28800 chars or the min_lenuser environment variable. + +pkg$images/iminfo/t_imstat.x + Davis, May 22, 1987 + An error in the image minimum computation was corrected. This error + would show up most noiticeably if imstat was run on a 1 pixel image. + The min value would be left set to MAX_REAL. + +pkg$images/filters/mkpkg + Davis, May 22, 1987 + I added mach.h to the dependency file list of t_fmedian.x and + recompiled. The segmentation violations I had been getting in the + program disappeared. + +pkg$images/t_shiftlines.x,shiftlines.x + Davis, April 15, 1987 + 1. I changed the names of the procedures shiftlines and shiftlinesi + to sh_lines and sh_linesi. When the original names were contracted + to 6 letter fortran names they became shifti and shifts which just + so happens to collide with shifti and shifts in the subdirectory + osb. On VMS this was causing problems with the shareable libraries. + If images was linked with -z there was no problem. + +pkg$images/imarith/t_imsum.x + Valdes, March 24, 1987 + 1. IMSUM was failing to unmap images opened to check image dimensions + in a quick first pass through the image list. This is probably + the source of the out of files problem with STF images. It may + be the source of the out of memory problem reported from AOS/IRAF. + +pkg$images/imfit/fit1d.x +pkg$images/imfit/mkpkg + Valdes, March 17, 1987 + 1. Added error checking for the illegal operation in which both input + and output image had an image section. This was causing the task + to crash. The task now behaves properly in this circumstance and + even allows the fitted output to be placed in an image section of + an existing output image (even different than the input image + section) provided the input and output images have the same sizes. + +pkg$images/t_convolve.x + Davis, March 3, 1987 + 1. Fixed the kernel decoding routine in the convolve task so that + it now recognizes the row delimter character in string entry mode. + +pkg$images/geometry,filters + Davis, February 27, 1987 + 1. Changed all the imseti (im, TY_BNDRYPIXVAL, value) calls to imsetr. + +pkg$images/t_minmax.x,minmax.x + Davis, February 24, 1987 + 1. Minmax has been changed to compute the minimum and maximum pixel + as well as the minimum and maximum pixel values. The pixels are output + in section notation and stored in the minmax parameter file. + +pkg$images/t_magnify.x + Davis, February 19, 1987 + 1. Magnify was aborting with the error MSIFIT: Too few datapoints + when trying to reduce an image using the higher order interpolants + poly3, poly5 and spline3. I increased the NEDGE defined constant + from 2 to three and modified the code to use the out of bounds + imio. + +pkg$images/geograph.x,geogmap.x + Davis, February 17, 1987 + 1. Geomap now uses the gpagefile routine to page the .keys file. + The :show command deactivates the workstation before printing a + block of text and reactivates it when it is finished. + +pkg$images/geometry/geomap,geotran + Davis, January 26, 1987 + 1. There have been substantial changes to the geomap, and geotrans + tasks and those tasks rotate, imlintran and register which depend + on them. + 2. Geomap has been changed to be able to compute a transformation + in both single and double precision. + 3. The geotran code has been speeded up considerably. A simple rotate + now takes 70 seconds instead of 155 seconds using bilinear interpolation. + 4. Two new cl parameters nxblock and nyblock have been added to the + rotate, imlintran, register and geotran tasks. If the output image + is smaller than these parameters then the entire output image + is computed at once. Otherwise the output image is computed in blocks + nxblock by nyblock in size. + 5. The 3 geotran parameters rotation, scangle and flip have been replaced + with two parameters xrotation and yrotation which serve the same purpose. + +pkg$images/geometry/t_shiftlines.x,shiftlines.x + Davis, January 19, 1987 + 1. The shiftlines task has been completely rewritten. The following + are the major changes. + 2. Shiftlines now makes use of the imio boundary extension operations. + Therefore the four options: nearest pixel, reflect, wrap and constant + boundary extension are available. + 3. The interpolation code has been vectorised. The previous version + was using the function call asieval for every output pixel evaluated. + The asieval call were replaced with asivector calls. + 4. An extra CL parameter constant to support constant boundary + exension was added. + 5. The shiftlines help page was modified and the date changed to + January 1987. + +pkg$images/imfit/imsurfit.x + Davis, January 12, 1987 + 1. I changed the amedr call to asokr calls. For my application it did + not matter whether the input array is left partially sorted and the asokr + routine is more efficient. + +pkg$images/lib/pixlist.x + Davis, December 12, 1986 + 1. A bug in the pl_get_ranges routine caused the routine to fail when the + number of ranges got too large. The program could not detect the end of + the ranges and would go into an infinite loop. + +pkg$images/iminfo/t_imstat.x + Davis, December 3, 1986 + 1. Imstat was failing on constant images because finite machine precision + could result in a negative sigma squared. Added a check for this condition. + +pkg$images/filters/fmode.x + Davis, October 27, 1986 + 1. Added a check for 0 data range before calling amapr. + +pkg$images/imarith/imsum.gx + Valdes, October 20, 1986 + 1. Found and fixed bug in this routine which caused pixel rejection + to fail some fraction of the time. + +pkg$images/geometry/blkrp.gx + Valdes, October 13, 1986 + 1. There was a bug when the replication factor for axis 1 was 1. + +pkg$images/iminfo/imhistogram.x + Hammond, October 8, 1986 + 1. Running imhistogram on a constant valued image would result in + a "floating divide by zero fault" in ahgm. This condition is + now trapped and a warning printed if there is no range in the data. + +pkg$images/tv/doc/cvl.hlp + Valdes, October 7, 1986 + 1. Typo in V2.3 documentation fixed: "zcale" -> "zscale". + +pkg$images/fit1d.par + Valdes, October 7, 1986 + 1. When querying for the output type the query was: + +Type of output (fit, difference, ratio) (fit|difference|ratio) (): + + The enumerated values were removed since they are given in the + prompt string. + +pkg$images/imarith/t_imsum.x +pkg$images/imarith/imsum.gx +pkg$images/do/imsum.hlp + Valdes, October 7, 1986 + 1. Medians or pixel rejection with more than 15 images is now + correct. There was an error in buffering. + 2. Averages of integer datatype images are now correct. The error + was caused by summing the pixel values divided by the number + of images instead of summing the pixel values and then dividing + by the number of images. + 3. Option keywords may now be abbreviated. + 4. The output pixel datatype now defaults to the calculation datatype + as is done in IMARITH. The help page was modified to indicate this. + 5. Dynamic memory is now used throughout to reduce the size of the + executable. + 6. The bugs 1-2 are present in V2.3 and not in V2.2. + +pkg$images/imarith/t_imarith.x +pkg$images/imarith.par +pkg$images/doc/imarith.hlp + Valdes, October 6, 1986 + 1. The parameter "debug" was changed to "noact". "debug" is reserved + for debugging information. + 2. The output pixel type now defaults to the calculation datatype. + 3. The datatype of constant operands is determined with LEXNUM. This + fixes a bug in which a constant such as "1." was classified as an + integer. + 4. Trailing whitespace in the string for a constant operand is allowed. + This fixes a bug with using "@" files created with the task FIELDS + from a table of numbers. Trailing whitespace in image names is + not checked for since this should be taken care of by lower level + system services. + 5. The reported bug with the "max" operation not creating a pixel file + was the result of the previous round of changes. This has been + corrected. This problem does not exist in the released version. + 6. All strings are now dynamically allocated. Also IMTOPENP is used + to open a CL list directly. + 7. The help page was revised for points (1) and (2). + +pkg$images/fmode.par +pkg$images/fmd_buf.x +pkg$images/med_sort.x + Davis, September 29, 1986 + 1. Changed the default value of the unmap parameter in fmode to yes. The + documentation was changed and the date modified. + 2. Added a test to make sure that the input image was not a constant + image in fmode and fmedian. + 3. Fixed the recently added swap macro in the sort routines which + was giving erroneous results for small boxes in tasks median and mode. + +pkg$images/imfit/fit1d.x + Valdes, September 24, 1986 + 1. Changed subroutine name with a VOPS prefix to one with a FIT1D + prefix. + +pkg$images/imarith/t_imdivide.x +pkg$images/doc/imdivide.hlp +pkg$images/imdivide.par + Valdes, September 24, 1986 + 1. Modified this ancient and obsolete task to remove redundant + subroutines now available in the VOPS library. + 2. The option to select action on zero divide was removed since + there was only one option. Parameter file changed. + 3. Help page revised. + +pkg$images/geometry/t_blkrep.x + +pkg$images/geometry/blkrp.gx + +pkg$images/geometry/blkrep.x + +pkg$images/doc/blkrep.hlp + +pkg$images/doc/mkpkg +pkg$images/images.cl +pkg$images/images.men +pkg$images/images.hd +pkg$images/x_images.x + Valdes, September 24, 1986 + 1. A new task called BLKREP for block replicating images has been added. + This task is a complement to BLKAVG and performs a function not + available in any other way. + 2. Help for BLKREP has been added. + +pkg$images/imarith/t_imarith.x +pkg$images/imarith/imadiv.gx +pkg$images/doc/imarith.hlp +pkg$images/imarith.par + Valdes, September 24, 1986 + 1. IMARITH has been modified to provide replacement of divisions + by zero with a constant parameter value. + 2. The documentation has been revised to include this change and to + clarify and emphasize areas of possible confusion. + +pkg$images/doc/magnify.hlp +pkg$images/doc/blkavg.hlp + Valdes, September 18, 1986 + 1. The MAGNIFY help document was expanded to clarify that images with axis + lengths of 1 cannot be magnified. Also a discussion of the output + size of a magnified image. This has been misunderstood often. + 2. Minor typo fix for BLKAVG. + +images$geometry/blkav.gx: Davis, September 7, 1986 + 1. The routine blkav$t was declared a function but called everywhere as + a procedure. Removed the function declaration. + +images$filters/med_sort.x: Davis, August 14, 1986 + 1. A bug in the sorting routine for MEDIAN and MODE in which the doop + loop increment was being set to zero has been fixed. This bug was + causing MEDIAN and MODE to fail on class 6 for certain sized windows. + +images$imfit/fit1d.x: Davis, July 24, 1986 + 1. A bug in the type=ratio option of fit1d was fixed. The iferr call + on the vector operator adivr was not trapping a divide by zero + condition. Changed adivr to adivzr. + +images$iminfo/listpixels.x: Davis, July 21, 1986 + 1. I changed a pargl to pargi for writing out the column number of the + pixels. + +images$iminfo/t_imstat.x: Davis, July 21, 1986 + 1. I changed a pargr to a pargd for the double precision quantitiies + sum(MIN) and sum(MAX). + +images$imfit/t_lineclean.x: Davis, July 14, 1986 + 1. Bug in the calling sequence for ic_clean fixed. The ic pointer + was not being passed to ic_clean causing access violation and/or + segmentation violation errors. + +images$imfit/fit1d.x, lineclean.x: Valdes, July 3, 1986 + 1. FIT1D and LINECLEAN modified to use new ICFIT package. + +From Valdes June 19, 1986 + +1. The help page for IMSUM was modified to explicitly state what the +median of an even number of images does. + +----------------------------------------------------------------------------- + +From Davis June 13, 1986 + +1. A bug in CONVOLVE in which insufficient space was being allocated for +long (> 161 elements) 1D kernels has been fixed. CONVOLVE was not +allocating sufficent extra space. + +----------------------------------------------------------------------------- + +From Davis June 12, 1986 + +1. I have changed the default value of parameter unmap in task FMEDIAN to +yes to preserve the original data range. + +2. I have changed the value of parameter row_delimiter from \n to ;. + +----------------------------------------------------------------------------- + +From Davis May 12, 1986 + +1. Changed the angle convention in GAUSS so that theta is the angle of the +major axis with respect to the x axis measured counter-clockwise as specified +in the help page instead of the negative of that angle. + +----------------------------------------------------------------------------- + +From Davis Apr 28, 1986 + +1. Moved geomap.key to lib$scr and made redefined HELPFILE in geogmap.x +appropriately. + +------------------------------------------------------------------------------ + +images$imarith/imsum.gx: Valdes Apr 25, 1986 + 1. Fixed bug in generic code which called the real VOPS operator + regardless of the datatype. This caused IMSUM to fail on short + images. + +From Davis Apr 17, 1986 + +1. Changed constructs of the form boolean == false in the file imdelete.x +to ! boolean. + +------------------------------------------------------------------------------ + +images$imarith: Valdes, April 8, 1986 + 1. IMARITH has been modified to also operate on a list of specified + header parameters. This is primarily used when adding images to + also added the exposure times. A new parameter was added and the + help page modified. + 2. IMSUM has been modified to also operate on a list of specified + header parameters. This is primarily used when summing images to + also sum the exposure times. A new parameter was added and the + help page modified. + +------------------------------------------------------------------------------ + +From Valdes Mar 24, 1986: + +1. When modifying IMARITH to handle mixed dimensions the output image header +was made a copy of the image with the higher dimension. However, the default +when the images were of the same dimension changed to be a copy of the second +operand. This has been changed back to being a copy of the first operand +image. + +------------------------------------------------------------------------------ + +From Davis Mar 21, 1986: + +1. A NULL pointer bug in the subroutine plfree inside IMSURFIT was causing +segmentation violation errors. A null pointer test was added to plfree. + +------------------------------------------------------------------------------ + +From Davis Mar 20, 1986: + +1. A bug involving in place operations in several image tasks has been fixed. + +------------------------------------------------------------------------------ + +From Davis Mar 19, 1986: + +1. IMSURFIT no longer permits the input image to be replaced by the output +image. + +2. The tasks IMSHIFT, IMTRANSPOSE, SHIFTLINES, and GEOTRAN have been modified +to use the images tools xt_mkimtemp and xt_delimtemp for in place +calculations. + +------------------------------------------------------------------------------- + +From Valdes Mar 13, 1986: + +1. Bug dealing with type coercion in short datatype images in IMARITH and IMSUM +which occurs on the SUN has been fixed. +------ +From Valdes Mar 10, 1986: + +1. IMSUM has been modified to work on any number of images. + +2. Modified the help page +------ +From Valdes Feb 25, 1986: + +There have been two changes to IMARITH: + +1. A bug preventing use of image sections has been removed. + +2. An improvement allowing use of images of different dimension. +The algorithm is as follow: + + a. Check if both operands are images. If not the output + image is a copy of the operand image. + + b. Check that the axes lengths are the same for the dimensions + in common. For example a 3D and 2D image must have the same + number of columns and lines. + + c. Set the output image to be a copy of the image with the + higher dimension. + + d. Repeat the operation over the lower dimensions for each of + the higher dimensions. + +For example, consider subtracting a 2D image from a 3D image. The output +image will be 3D and the 2D image is subtracted from each band of the +3D image. This will work for any combination of dimensions. Another +example is dividing a 3D image by a 1D image. Then each line of each +plane and each band will be divided by the 1D image. Likely applications +will be subtracting biases and darks and dividing by response calibrations +in stacked observations. + +3. Modified the help page +=========== +Release 2.2 +=========== +From Davis Mar 6, 1986: + +1. A serious bug had crept into GAUSS after I made some changes. For 2D +images the sense of the sigma was reversed, i.e sigma = 2.0 was actually +sigma = 0.5. This bug has now been fixed. + +--------------------------------------------------------------------------- + +From Davis Jan 13, 1986: + +1. Listpixels will now print out complex pixel values correctly. + +--------------------------------------------------------------------------- + +From Davis Dec 12, 1985: + +1. The directional gradient operator has been added to the images package. + +--------------------------------------------------------------------------- + +From Valdes Dec 11, 1985: + +1. IMARITH has been modified to first check if an operand is an existing +file. This allows purely numeric image names to be used. + +--------------------------------------------------------------------------- + +From Davis Dec 11, 1985: + +1. A Laplacian (second derivatives) operator has been added to the images +package. + +--------------------------------------------------------------------------- + +From Davis Dec 10, 1985: + +1. The new convolution tasks boxcar, gauss and convolve have been added +to the images package. Convolve convolves an image with an arbitrary +user supplied rectangular kernel. Gauss convolves an image with a 2D +Gaussian of arbitrary size. Boxcar will smooth an image using a smoothing +window of arbitrary size. + +2. The images package source code has been reorganized into the following +subdirectories: 1) filters 2) geometry 3) imfit 4) imarith 4) iminfo and +5) imutil 6) lib. Lib contains routines which may be of use to several IRAF +tasks such as ranges. The imutil subdirectory contains tasks which modify +images in some way such as hedit. The iminfo subdirectory contains code +for displaying header and pixel values and other image characteristics +such as the histogram. Image arithmetic and fitting routines are found +in imarith and imfit respectively. Filters contains the convolution and +median filtering routines and geometry contains the geometric distortion +corrections routines. + +3. The documentation of the main images package has been brought into +conformity with the new IRAF standards. + +4. Documentation for imdelete, imheader, imhistogram, listpixels and +sections has been added to the help database. + +5. The parameter structure for imhistogram has been simplified. The +redundant parameters sections and setranges have been removed. + +--------------------------------------------------------------------------- + + +From Valdes Nov 4, 1985: + +1. IMCOPY modified so that the output image may be a directory. Previously +logical directories were not correctly identified. +------ + +From Davis Oct 21, 1985: + +1. A bug in the pixel rejection cycle of IMSURFIT was corrected. The routine +make_ranges in ranges.x was not successfully converting a sorted list of +rejected pixels into a list of ranges in all cases. + +2. Automatic zero divide error checking has been added to IMSURFIT. +------ +From Valdes Oct 17, 1985: + +1. Fit1d now allows averaging of image lines or columns when interactively +setting the fitting parameters. The syntax is "Fit line = 10 30"; i.e. +blank separated line or column numbers. A single number selects just one +line or column. Be aware however, that the actual fitting of the image +is still done on each column or line individually. + +2. The zero line in the interactive curve fitting graphs has been removed. +This zero line interfered with fitting data near zero. +------ +From Rooke Oct 10, 1985: + +1. Blkaverage was changed to "blkavg" and modified to support any allowed +number of dimensions. It was also made faster in most cases, depending on +the blocking factors in each dimension. +------ +From Valdes Oct 4, 1985: + +1. Fit1d and lineclean modified to allow separate low and high rejection +limits and rejection iterations. +------ +From Davis Oct 3, 1985: + +1. Minmax was not calculating the minimum correctly for integer images. +because the initial values were not being set correctly. +------ +From Valdes Oct 1, 1985: + +1. Imheader was modified to print the image history. Though the history +mechanism is little used at the moment it should become an important part +of any image. + +2. Task revisions renamed to revs. +------ +From Davis Sept 30, 1985: + +1. Two new tasks median and fmedian have been added to the images package. +Fmedian is a fast median filtering algorithm for integer data which uses +the histogram of the image to calculate the median at each window. Median +is a slower but more general algorithm which performs the same task. +------ +From Valdes August 26, 1985: + +1. Blkaverage has been modified to include an new parameter called option. +The current options are to average the blocks or sum the blocks. +------ +From Valdes August 7, 1985 + +1. Fit1d and lineclean wer recompiled with the modified icfit package. +The new package contains better labeling and graph documentation. + +2. The two tasks now have parameters for setting the graphics device +and reading cursor input from a file. +______ +From: /u2/davis/ Tue 08:27:09 06-Aug-85 +Package: images +Title: imshift bug + +Imshift was shifting incorrectly when an integral pixel shift in x and +a fractional pixel shift in y was requested. The actual x shift was +xshift + 1. The bug has been fixed and imshift will now work correctly for +any combination of fractional and integral pixel shifts +------ +From: /u2/davis/ Fri 18:14:12 02-Aug-85 +Package: images +Title: new images task + +A new task GEOMAP has been added to the images package. GEOMAP calculates +the spatial transformation required to map one image onto another. +------ +From: /u2/davis/ Thu 16:47:49 01-Aug-85 +Package: images +Title: new images tasks + +The tasks ROTATE, IMLINTRAN and GEODISTRAN have been added to the images +package. ROTATE rotates and shifts an image. IMLINTRAN will rotate, rescale +and shift an an image. GEODISTRAN corrects an image for geometric distortion. +------ +From Valdes July 26, 1985: + +1. The task revisions has been added to page revisions to the images +package. The intent is that each package will have a revisions task. +Note that this means there may be multiple tasks named revisions loaded +at one time. Typing revisions alone will give the revisions for the +current package. To get the system revisions type system.revisions. + +2. A new task called fit1d replaces linefit. It is essentially the same +as linefit except for an extra parameter "axis" which selects the axis along +which the functions are to be fit. Axis 1 is lines and axis 2 is columns. +The advantages of this change are: + + a. Column fitting can now be done without transposing the image. + This allows linefit to be used with image sections along + both axes. + b. For 1D images there is no prompt for the line number. +.endhelp |