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Old 23rd September 2009, 00:05   #1  |  Link
msaadn
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Colorimetry

I've been using MediaInfo since the beginning, So there is this colorimetry which in most videos I've seen is 4:2:0

So what is this? what does it tell?
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Old 23rd September 2009, 02:23   #2  |  Link
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http://en.wikipedia.org/wiki/Chroma_subsampling
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Old 23rd September 2009, 02:25   #3  |  Link
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Oh come on. Wikipedia redirects you for "4:2:0" to the right page: http://en.wikipedia.org/wiki/4:2:0
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Old 23rd September 2009, 02:38   #4  |  Link
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Well what I googled and Wikied was colorimetry, not 4:2:0. Thankx anyway, I'll check them out.
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Old 23rd September 2009, 02:45   #5  |  Link
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4:2:0 is not a type of colorimetry. However, the meaning of YUV X:X:X notation is explained in this post by TinTime: http://forum.doom9.org/showthread.ph...41#post1310741

Colorimetry is a broad term related to various sciences that study color perception, explained by Wikipedia at http://en.wikipedia.org/wiki/Colorimetry

You might also see people refer to the RGB->YUV constants used in digital video referred to as the "colorimetry" of the video. This is explained at http://en.wikipedia.org/wiki/Color_m...hnical_details

Last edited by thewebchat; 23rd September 2009 at 02:49.
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Old 23rd September 2009, 02:57   #6  |  Link
msaadn
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Many thanks thewebchat. That really cleared it all up. Thank you all.
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