It is used to test "pre-processing" filters (like de-noising or de-banding) before the final encode happens.
Developers use these clips to see which encoder settings produce the smallest file size while maintaining "perceptual transparency" (meaning the human eye can't tell the difference from the original). anime_comp.7z
The "anime_comp.7z" archive usually contains raw or "near-lossless" clips of various anime styles—ranging from 90s cel-animated shows to modern digitally-produced series. It is used to test "pre-processing" filters (like
Anime often features large areas of uniform color. Standard compression can create "banding" artifacts here, where smooth gradients turn into blocky steps. anime_comp.7z
Compression for anime is notoriously difficult compared to live-action for several reasons: