Re: [9fans] PNG and APE (cntd)

[Lluís Batlle i Rossell]

[EMAIL PROTECTED] wrote:

I have a slightly OT question: is it reasonable that PNG versions of
an image may be bigger than their GIF equivalent and (less
sursprisingly) much bigger than their JPEG versions?  I have not
tested this theory, but I have had this reported to me.

I don't know if I understood correctly your question, but although GIF uses LZW instead of zlib (LZ77 iirc), it can stand only for 256 different colors - hence it my be smaller than PNG, as PNG allows 32bit colors fine (being 8 for alpha). JPEG is dependant on lossy compression (at least the actual implementations; I think a lossless was proposed, but I've never seen it), then sure it can be much smaller than PNG.

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