Comment on It's insidious

• Deconceptualist@lemm.ee ⁨4⁩ ⁨weeks⁩ ago

  It’s not TIFF. This isn’t NASA imagery. PNGs do alright on compression for photos.

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  • user134450@feddit.org ⁨4⁩ ⁨weeks⁩ ago

    TIFF is also such a hot mess when it comes to picking the correct subformat because there are so many options for compression available, some of them FOSS, some of them proprietary.

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  • phoenixz@lemmy.ca ⁨4⁩ ⁨weeks⁩ ago

    PNG can zip but it’s lossless, joh can lose data, and the difference is very significant

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• frayedpickles@lemmy.cafe ⁨4⁩ ⁨weeks⁩ ago

  Can be lossless

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  • user134450@feddit.org ⁨4⁩ ⁨weeks⁩ ago

    How would you make a lossy PNG? Just introduce errors randomly? That makes no sense.

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    • frayedpickles@lemmy.cafe ⁨4⁩ ⁨weeks⁩ ago

      By reading google or the wiki

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      • user134450@feddit.org ⁨4⁩ ⁨weeks⁩ ago

        Are we still talking about PNG? Nowhere in the PNG standard is a description of changing the actual content of an image to make it compress better with DEFLATE. If you are thinking about the filter stage you should know that in this context an image filter is just creating a different representation of the same image, because it is fully reversible.

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