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DVD > 4:2:0
The following information is about 4:2:0.
4:2:0 Defined
The component digital video format used by DVD, where there is one Cb sample and one Cr sample for every four Y samples (i.e., 1 pixel in a 2x2 grid). 2:1 horizontal downsampling and 2:1 vertical downsampling. Cb and Cr are sampled on every other line, in between the scan lines, with one set of chroma samples for each two luma samples on a line. This amounts to a subsampling of chroma by a factor of two compared to luma (and by a factor of four for a single Cb or Cr component).
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Off-site 4:2:0 Links, User Submitted
The following links have been collected through user bookmark submission in the 4:2:0 category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
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