myint/perceptualdiff — pull request #1 by jterrace (2012-03-20 16:42:38+00:00)
Title: Error sums

1. Adds an optional flag, -sum-errors, that prints out the sum of the luminance and delta-e errors across all pixels between the two images. This is nice in that it gives you a more "fuzzy" error difference instead of just a binary yes/no for each pixel, if desired.

2. Fixed a double newline at the end of output