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Old March 17th, 2005, 08:16 AM   #1
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Hmmm....

Hey guys..can someone try and explai n the whole 4:2:2 and 4:1:1 thing to me ? I keep hearing it..yet...i am clueless..
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Old March 17th, 2005, 08:48 AM   #2
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This is the colour space of uncompressed video versus the way colours are divided and tossed or interpolated when compressed such as when dealing with dv.

Do a search and you'll find much more in depth technical discussion.

Also, you'll attract more attention if you make your thread title a little less vague ....
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Old March 17th, 2005, 09:30 AM   #3
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See http://www.adamwilt.com/DV-FAQ-tech.html
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Old March 19th, 2005, 04:48 AM   #4
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Most/a lot of video compression formats use YUV encoding,
the numbers represent the sampling the algorithm uses in YUV
mode.

So 4:2:2 means for every 4 samples of Y there are 2 samples of
U and V. You can figure out 4:1:1. There is also 4:2:0, this
doesn't mean V isn't sampled at all, but that this happens every
other line.
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