He didn't try hard enough. OpenJPEG has a file size parameter, which can go well...

silverbacknet on Oct 3, 2015 | parent | context | favorite | on: Free Lossless Image Format

He didn't try hard enough. OpenJPEG has a file size parameter, which can go well below its -q 0 size. I was easily able to generate a 16.9K jp2 by specifying the size: https://dl.dropboxusercontent.com/u/54412753/doom9/fish.jp2 which in png looks like: https://dl.dropboxusercontent.com/u/54412753/doom9/fish.jp2....

Looks better than anything else but BPG at that size, to me, although FLIF obviously isn't optimized for lossy.

jonsneyers on Oct 3, 2015 [–]

Thanks for pointing this out! I only tried ImageMagick convert at minimum -quality. Sorry about that.