Provided by: libjxl-devtools_0.10.3-4ubuntu1_amd64
NAME
ssimulacra2 - ssimulacra2
SYNOPSIS
ssimulacra2 orig.png distorted.png
DESCRIPTION
Returns a score in range -inf..100, which correlates to subjective visual quality: 30 = low quality (p10 worst output of mozjpeg -quality 30) 50 = medium quality (average output of cjxl -q 40 or mozjpeg -quality 40, p10 output of cjxl -q 50 or mozjpeg -quality 60) 70 = high quality (average output of cjxl -q 70 or mozjpeg -quality 70, p10 output of cjxl -q 75 or mozjpeg -quality 80) 90 = very high quality (impossible to distinguish from original at 1:1, average output of cjxl -q 90 or mozjpeg -quality 90)
AUTHOR
This manual page was written by Mathieu Malaterre <malat@debian.org> for the Debian GNU/Linux system (but may be used by others).