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Thursday 7.8.2008 / 04:57 PM
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afterdawn.com > glossary > Chroma Subsampling
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Glossary
Glossary

Chroma Subsampling

When digital video is encoded for display, rather than editing, it's usually stored in a compressed colorspace such as YV12 or YUY2. These colorspaces use Chroma Subsampling to compress each Frame by cutting the amount of U and V (chroma) detail to as little as 25% of the original uncompressed image.

Without Chroma Subsampling, the storage requirement for most consumer video formats, including HD DVD, Blu-ray, DVD, SVCD, VCD, AVCHD, HDV, and DV, would double.

For more information, see the glossary definitions for:

Chroma Chromaticity Chrominance Color Space Gamma Correction Huffyuv R'G'B' RGB Y'U'V' YUV YUY2 YV12
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