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Chroma subsampling
A way of reducing video data by storing colour information at a lower spatial resolution than brightness information. Formats such as 4:2:2 and 4:2:0 retain different amounts of colour detail, affecting fine coloured edges and later image processing.
A way of reducing video data by storing colour information at a lower spatial resolution than brightness information. Formats such as 4:2:2 and 4:2:0 retain different amounts of colour detail, affecting fine coloured edges and later image processing.
First published 7 September 2026 · Revision 1 · Substantive changes to this entry are dated here.