this post was submitted on 06 Aug 2024
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341
JPEG is Dying - And that's a bad thing | 2kliksphilip (www.youtube.com)
submitted 3 months ago by [email protected] to c/[email protected]
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[–] [email protected] 4 points 3 months ago (2 children)

Compared to something like JPEG XL? It is hands down worse in virtually all metrics.

Only thing I can think of is that PNG is inherently lossless. Whereas JPEG XL can be lossless or lossy.

[–] [email protected] 4 points 3 months ago

I haven’t dug into the test data or methodology myself but I read a discussion thread recently (on Reddit - /r/jpegxl/comments/l9ta2u/how_does_lossless_jpegxl_compared_to_png) - across a 200+ image test suite, the lossless compression of PNG generates files that are 162% the size of those losslessly compressed with JPEG XL.

However I also know that some tools have bad performance compressing PNG, and no certainty that those weren’t used

[–] [email protected] 2 points 3 months ago

It has a higher bit depth at orders of magnitude less file size. Admittedly it has a smaller max dimension, though the max for PNG is (I believe) purely theoretical.