An other example is pngquant, which performs "lossy" compression of PNGs (by qua... | Hacker News

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		masklinn on March 14, 2021 \| parent \| context \| favorite \| on: Why are tar.xz files 15x smaller when using Python... An other example is pngquant, which performs "lossy" compression of PNGs (by quantizing them).

LeoPanthera on March 14, 2021 [–]

pngquant reduces the size by removing information from the image before compression.

gifsicle --lossy actually allows slightly lossy LZW dictionary matches to improve the compression itself.

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