setpix (1) Linux Manual Page
setpix – Set FITS or IRAF image values Synopsissetpix [-vn] file.fts [x_range y_range value] [@valuefile] DescriptionSet a specified pixel or range of pixels in a FITS or IRAF image to a specified value. More than one range of pixels and values may be specified on one command line. A file of xrange yrange value triplets…
