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Dropbox say they can losslessly compress JPEG files (~20% saving): https://blogs.dropbox.com/tech/2016/07/lepton-image-compression-saving-22-losslessly-from-im
by nimrody 10y ago
Dropbox say they can losslessly compress JPEG files (~20% saving):
https://blogs.dropbox.com/tech/2016/07/lepton-image-compression-saving-22-losslessly-from-images-at-15mbs/ https://blogs.dropbox.com/tech/2016/07/lepton-image-compress...
- gcp 10y agoKnown techniques. JPEG uses Huffman coding for entropy coding, you can replace that with arithmetic coding. This requires knowing the format details, though.