• Valmond@lemmy.world
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    24 hours ago

    Is the quality the same? If so how do you know? I mean it’s better, I’m just curious.

      • Valmond@lemmy.world
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        12 hours ago

        So you have no hard proof (no critic here, I’m just curious)? Not that it’s better but that your test images has the same quality.

        For the rest, thank you for the links and the time but that only explains how the compression works.

        If you want to know you could do fourier transform and see which kind of signals are cut out in one for example.

        • ILikeBoobies@lemmy.ca
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          3 hours ago

          Quality improvements are that you can upload/download it without getting artifacts/pixel bleeding. JXL’s algorithm ensures that it’s a 1 to 1 transfer

          But if I draw a stick person 512x512, there isn’t an image format that will make it anymore than it is. That’s why we look at compression

    • Olissipo@programming.dev
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      21 hours ago

      For most of the images that I tried you can only see differences with the images side by side. It’s really subtle.

      I do have one example for which my config must be bad, compresses a lot but introduces a lot of noise