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mrpopo
on March 3, 2023
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Ethically Sourced Lena Picture
I think in order to be used in image tech, it shouldn't be shipped as PNG, even with lossless compression. It should be BMP, ideally with the PBM, PGM and PPM formats too.
Not sure how serious this is, though. :/
turnsout
on March 3, 2023
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I think if you’re working in computer graphics you can work out how to convert a PNG.
ok123456
on March 3, 2023
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The point is you want a compression and artifact free benchmark image.
turnsout
on March 3, 2023
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That's what you'll get if you decompress the PNG…
basch
on March 3, 2023
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isnt png lossless? what compression artifact is being introduced?
jtriangle
on March 3, 2023
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PNG is mathmatically lossless, so, you can easily decompress it into whatever format you'd like, while benefitting from a smaller file size.
That's the whole point.
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Not sure how serious this is, though. :/