NAME

       butteraugli - measuring perceived differences between images

SYNOPSYS

       butteraugli {image1.(png|jpg|jpeg)} {image2.(png|jpg|jpeg)} [heatmap.ppm]

DESCRIPTION

       Butteraugli is a project that estimates the psychovisual similarity of two images. It gives a score for
       the images that is reliable in the domain of barely noticeable differences. Butteraugli not only gives a
       scalar score, but also computes a spatial map of the level of differences.

       One of the main motivations for this project is the statistical differences in location and density of
       different color receptors, particularly the low density of blue cones in the fovea. Another motivation
       comes from more accurate modeling of ganglion cells, particularly the frequency space inhibition.

AUTHOR

       This manual page was written by ChangZhuo Chen <czchen@debian.org> for the Debian GNU/Linux system (but
       may be used by others).

                                                   03/22/2020                                     BUTTERAUGLI(1)