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March 17th, 2005, 09:16 AM
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Regular Crew
Join Date: Mar 2004
Location: Ontario, Canada
Posts: 148
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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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March 17th, 2005, 09:48 AM
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#2 |
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Major Player
Join Date: Jan 2004
Location: Waterloo Ontario
Posts: 721
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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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March 17th, 2005, 10:30 AM
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#3 |
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Major Player
Join Date: Sep 2002
Location: Belgium
Posts: 804
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March 19th, 2005, 05:48 AM
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#4 |
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RED Code Chef
Join Date: Oct 2001
Location: Holland
Posts: 12,514
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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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