perceptualdiff(1) compare images using a perceptually based image metric


perceptualdiff <image1> <image2> [options]


This manual page documents briefly the perceptualdiff command.

perceptualdiff is a program that compares image1.tif and image2.tif using a perceptually based image metric. Note: Input files can also be in the PNG format


A summary of options is included below.
Turns on verbose mode
-fov <deg>
Field of view in degrees (0.1 to 89.9)
-threshold <p>
#pixels p below which differences are ignored
-gamma <g>
Value to convert rgb into linear space (default 2.2)
-luminance <l>

 White luminance (default 100.0 cdm^-2)
-output <o.ppm>

 Write difference to the file o.ppm


perceptualdiff was written by Yangli Hector Yee <[email protected]>

This manual page was written by Jeff Breidenbach <[email protected]>, for the Debian project (but may be used by others).