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| There are actually several ways to do the color space conversion. The mpeg2 decoder that can be found on http://www.mpeg.org/MPEG/MSSG/#source distinguishes the following standards: ITU-R Rec. 709 (1990) FCC ITU-R Rec. 624-4 System B, G SMPTE 170M SMPTE 240M (1987) I don't know exactly what the differences are, but you may be able to find more details he http://www.video-demystified.com/mm/tutor/ch03.pdf |
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