>since YUV420 really messes up red text in screen captures for example Is there ... | Hacker News

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		thrdbndndn on Feb 28, 2023 \| parent \| context \| favorite \| on: FFmpeg 6.0 >since YUV420 really messes up red text in screen captures for example Is there an detailed explanation why red is especially bad after chroma subsampling? Have been wondering about this for awhile. I assume it's because red has low brightness/luminance (no idea if correct or not)?

klodolph on Feb 28, 2023 [–]

Yes, it’s because red is dim. Dark blue (like, RGB 0, 0, 255) also suffers, perhaps worse, but that shade of blue is hard to reaf even when it is reproduced perfectly.

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