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author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
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committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /pkg/proto/doc/binfil.hlp | |
download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz |
Initial commit
Diffstat (limited to 'pkg/proto/doc/binfil.hlp')
-rw-r--r-- | pkg/proto/doc/binfil.hlp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/pkg/proto/doc/binfil.hlp b/pkg/proto/doc/binfil.hlp new file mode 100644 index 00000000..beee0c81 --- /dev/null +++ b/pkg/proto/doc/binfil.hlp @@ -0,0 +1,71 @@ +.help binfil Jul86 proto +.ih +NAME +binfil -- create a 16 bit binary raster file from an IRAF image +.ih +USAGE +binfil input +.ih +PARAMETERS +.ls input +The list of input images to be converted. +.le +.ls scale_fact = 1.0 +A multiplicative scale factor to be applied to each pixel during the +conversion process. This parameter provides the means to minimize loss +of precision when converting from the dynamic range of the IRAF image +pixels to the dynamic range of the output 16-bit signed integer, +-32768 to 32767. +.le +.ls header = no +Prepend a short descriptive header to the output binary raster file? +.le +.ih +DESCRIPTION +BINFIL generates a simple signed 16-bit binary raster file +from IRAF images. BINFIL can be useful when programs other than IRAF +applications are to be used to examine the data. The format of the resulting +file is a simple string of pixels, with the exception that the first +90 bytes or 45 words may optionally form a minimal header. + +The header elements are stored as follows: + +.nj +.nf + word 1 : nrows + word 2 : ncols + word 3 : IRAF pixel type flag + word 4-13 : reserved space + word 14-45: image title (ASCII 64 bytes) +.fi +.ju + +Pixels from the input images are converted to short integers after scaling +by the scale_fact parameter. The resultant pixel values are limited to the +maximum range of a short integer and then written to the binary file. + +The output binary file assumes the name of the input image with an appended +".b" to indicate binary. +.ih +EXAMPLES + +Convert the IRAF image irafimage to the binary file irafimage.b. + +.nj +.nf +cl> binfil irafimage scale=0.01 +.fi +.ju + +.ih +TIME REQUIREMENTS +.ih +BUGS +Only the first 64 characters of the image title are placed in the binary file +header. + +There is no way to specify the output binary file names. +.ih +SEE ALSO +irafil +.endhelp |