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+--- Thread: JPEG sampling factors explained (/Thread-JPEG-sampling-factors-explained)
JPEG sampling factors explained - Ofnuts - 04-11-2021
If you ever got confused about the JPEG sampling factors notations as shows in Gimp's JPEG export dialog, but also ImageMagick's identify, mediainfo, here is a page that explains it all:
https://zpl.fi/chroma-subsampling-and-jpeg-sampling-factors/