pixdiff - highlight pixel colors which differ between two files
pixdiff file1.pix file2.pix >
out.pix
pixdiff highlights the pixels which differ between two color
pix(5) format files. The input files are read pixel by pixel and if any
of the color planes red, green, or blue differ, those colors are specially
marked. Bytes that differ by +/-1 are drawn with intensity 192; bytes that
differ more are displayed at full intensity of 255. If none of the color
values differ, an NTSC converted black and white equivalent at one half the
original intensity is displayed. This is to aid in seeing where in the image
the different pixels lie. Upon completion, pixdiff reports the number
of bytes matching, the number off by 1, and the number off by many.
Also see bwdiff(1), which can still be used on pix
files, yet can produce different kinds of output.
brlcad(1), bwdiff(1), pix-fb(1), pixstat(1),
pix(5)
This software is Copyright (c) 1989-2019 by the United States Government as
represented by U.S. Army Research Laboratory.
Reports of bugs or problems should be submitted via electronic mail to
devs@brlcad.org