::Chroma subsampling


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Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.<ref> {{#invoke:citation/CS1|citation |CitationClass=book }}</ref>

It is used in many video encoding schemes — both analog and digital — and also in JPEG encoding.

Chroma subsampling sections
Intro  Rationale  How subsampling works  Sampling systems and ratios  Types of subsampling  Out-of-gamut colors  Terminology  History  Effectiveness  Compatibility issues  See also  References  References  

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