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Last I looked into writing a JPEG en/decoder, I ran into the issue that I was unable to find a specification not behind a $800 paywall.
by aliceryhl 7y ago
Last I looked into writing a JPEG en/decoder, I ran into the issue that I was unable to find a specification not behind a $800 paywall.
- Jasper_ 7y agoHere you go: https://www.w3.org/Graphics/JPEG/itu-t81.pdf https://www.w3.org/Graphics/JPEG/itu-t81.pdf https://www.w3.org/Graphics/JPEG/jfif3.pdf https://www.w3.org/Graphics/JPEG/jfif3.pdf I'll also link Cristi Cuturicu's "A note about the JPEG decoding algorithm", which is where I started my decoder implementation from, and it was indeed a ton of fun. http://www.opennet.ru/docs/formats/jpeg.txt http://www.opennet.ru/docs/formats/jpeg.txt
- jacquesm 7y agoThe JPEG reference source code is pretty readable.