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Also not sure if this is a Twitter issue (wait, another reason not to use twitter? So why do people keep using it for something it’s bad at? /rant), but I got a
by Semaphor 4y ago
Also not sure if this is a Twitter issue (wait, another reason not to use twitter? So why do people keep using it for something it’s bad at? /rant), but I got a different result.
I can clearly see the differences between the encodings (I shuffled the images and sorted them by perceived quality), and I disagree that JXL looks better / is less racist. For both sides, the AVIF version looks significantly better, but especially for the black woman. The white woman already has fewer visible details that can be lost, the black woman has more, and JXL just smoothes those over, making it look like someone used the smudge tool (in general, but it’s especially bad here [0]).
So going from this example, I’d say AVIF wins by quite some margin.
[0]: https://i.imgur.com/2WU6iKe.png https://i.imgur.com/2WU6iKe.png
- jonsneyers 4y agoIt was probably a bad idea to put such examples on twitter, since twitter recompression is quite aggressive and makes a big difference. I don't have the original decoded images nearby but it is best to do these kinds of comparisons without any recompression.
- Semaphor 4y agoI’d happily look at them again in their actual versions