Hacker News new | ask | show | jobs
by masklinn 1684 days ago
> Dithering would, in theory, work well for compression if you use a palette. GIF always does that, PNG also has a palette mode.

Even then that's a bit more complicated because both formats will apply LZ compression (respectively LZW and LZ77 because DEFLATE), so depending on the original source the dithering can work against the compression.