this post was submitted on 19 Dec 2023
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submitted 11 months ago by themaninblack@lemmy.world to c/memes@lemmy.ml
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[–] mindbleach@sh.itjust.works 4 points 11 months ago

Sticking with image compression, see Quite Okay Images. It treats each pixel as three numbers and expects mostly small changes. Recent pixels get hashed and can be referenced in a few bits. This is enough to compete with PNG filesizes, an order of magnitude faster, while handling each pixel exactly once.