Very nice read, thanks for posting it!!! I also learned a lot from the various JPEG articles on ImpulseAdventure (no affiliation), e.g.: https://www.impulsead

Very nice read, thanks for posting it!!! I also learned a lot from the various JPEG articles on ImpulseAdventure (no affiliation), e.g.: https://www.impulseadventure.com/photo/jpeg-quantization.html https://www.impulseadventure.com/photo/jpeg-quantization.htm... https://www.impulseadventure.com/photo/jpeg-compression.html https://www.impulseadventure.com/photo/jpeg-compression.html https://www.impulseadventure.com/photo/chroma-subsampling.html https://www.impulseadventure.com/photo/chroma-subsampling.ht... They also have a lot of practical stuff (which chroma subsampling will Photoshop actually use when you save at 80% quality?) in addition to the theory.