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).