Quote:
Originally Posted by woj
something doesn't sound right, can you upload the file you tried and exact command you used? One detail you may have overlooked is that Guetzli is supposed to encode uncompressed original -> jpeg, not jpeg->jpeg like jpegoptim does...
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I know it doesn't sound right. I didn't think it sounded right either, but I posted up on the github issues page and it's exactly what is expected. It just says high quality images that haven't been compressed by another compressor, not that they cannot be jpeg. Their sample image is a PNG. It also uses an absurd amount of ram.
https://github.com/google/guetzli/issues/96
https://github.com/google/guetzli/issues/50
As it sits, this utility is completely and utterly useless unless you want to devote literally 24 hours of processing time to (very poorly) compressing a single FHG.