Lance Hanlen wrote:
Hi, I'm just looking into a YUV-RGB conversion, and there is some
controversy as to the exact conversion matrix. Tim Miller has advised
me to post this to the community as there is some subtlety and an
informed ruling would be great (a consensus even better).
As far as I understand, all the issues are concisely presented here:
This information appears to be correct including the differences between
analog and digital. Since we aren't going to be digitizing an analog
video signal, we only have to worry about the digital.
http://www.fourcc.org/fccyvrgb.php
In particular, please note the link Microsoft's answer, ironically
notable because it is integral:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceddraw/html/_dxce_converting_between_yuv_and_rgb.asp
Note the ">> 8" in the computation. This means that it is really
equivalent to fixed point computation.
--
JRT
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