PerceptualDiff 1.0.2

PerceptualDiff is an image comparison utility.

  Add it to your Download Basket!

 Add it to your Watch List!


Rate it!
send us
an update
GPL (GNU General Public License) 
2.9/5 9
Hector Yee
ROOT \ Multimedia \ Graphics
PerceptualDiff is an image comparison utility that makes use of a computational model of the human visual system to compare two images.

PerceptualDiff is released under the GNU GPL license.


PerceptualDiff image1.tif image2.tif [options]

-verbose : Turns on verbose mode
-fov : field of view,indicates how much of the observer's view the screen occupies, expressed in degrees; typically this is between 10 and 85. The front row of a theater has a field of view of around 85 degrees. The middle row has a field of view of around 50 degrees. The back row has a field of view of around 27 degrees. Pick a value that matches the strictness requirements of your test; for example, if it is important to fail on the slightest noticeable error, use -fov 85.
-threshold p : Sets the number of pixels, p, to reject. For example if p is 100, then the test fails if 100 or more pixels are perceptably different.
-gamma g : The gamma to use to convert to RGB linear space. Default is 2.2
-luminance l: The luminance of the display the observer is seeing. Default is 100 candela per meter squared

What's New in This Release:

[jt] Converted the loading and saving routines to use FreeImage.

Last updated on July 3rd, 2008

#image comparison #compare photos #image diff #image #photo #diff #compare

Add your review!