Perceptual Image Difference UtilityPerceptual Image Diff Introduction PerceptualDiff is an image comparison utility that makes use of a computational model of the human visual system to compare two images. This software is released under the GNU General Public License. Contributors Hector Yee for initial code and perceptual metric Scott Corley for PNG file reading Tobias Sauerwein for Fedora Linux RPM Jeff Breidenbach for Debian Pa
