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diff --git a/pkg/proto/doc/epix.hlp b/pkg/proto/doc/epix.hlp new file mode 100644 index 00000000..e47afe5e --- /dev/null +++ b/pkg/proto/doc/epix.hlp @@ -0,0 +1,55 @@ +.help epix Jun84 proto +.ih +NAME +epix -- edit pixels in an image +.ih +USAGE +epix image_name x y new_value +.ih +PARAMETERS +.ls image_name +Name of image or image section to be edited. +.le +.ls xcoord, ycoord +The coordinates of the pixel to be edited. +.le +.ls new_value +The new value of the pixel. +.le +.ls boxsize = 3 +The width of a square subraster surrounding the pixel to be edited over which +the rejection mean and the median will be computed. +.le +.ls ksigma = 0.0 +The pixel rejection threshold for the iterative rejection algorithm used +to compute the mean. If zero, a rejection threshold will be computed based +on the size of the sample using Chauvenet's relation. +.le +.ls edit_image = yes +Set the pixel value to \fInew_value\fR? If editing is disabled the mean +and median may still be computed, and the subraster may still be printed. +.le +.ls verbose = yes +Print the values of the pixels in the subraster surrounding the image, +and compute the rejection mean and the median. +.le +.ih +DESCRIPTION +A subraster \fIboxsize\fR pixels square is extracted centered on the pixel +(xcoord,ycoord). If the \fIverbose\fR flag is enabled the values +of the pixels in the subraster are printed on the standard output along with +the rejection mean and median of the subraster. If \fIedit_image\fR is yes +the program will ask for the \fInew_value\fR and edit the image. +.ih +EXAMPLES +1. Replace the specified pixels with a value of zero. + +.nf + cl> epix M92 400 87 0.0 + cl> epix M92 45 300 0.0 + cl> epix M92 207 300 0.0 +.fi +.ih +SEE ALSO +imedit +.endhelp |