[Mplayer-cvslog] CVS: main/DOCS/tech colorspaces.txt,1.5,1.6

[Felix Buenemann]

On Saturday 20 April 2002 23:01, Alex Beregszaszi wrote:
> +Julien (sorry, I can't call back his surname) suggests that there are
> +problems with the above formula and suggests the following instead:
> +    Y  = 0.299R + 0.587G + 0.114B
>      Cb = U'= (B-Y)*0.565
>      Cr = V'= (R-Y)*0.713
>  with reciprocal versions:
>      R = Y + 1.403V'
>      G = Y - 0.344U' - 0.714V'
>      B = Y + 1.770U'
> -note: this formule doesn't contain the +128 offsets of U,V values!
> +note: this formula doesn't contain the +128 offsets of U,V values!
IMHO there's yuv->rgb formula tweaked for tv and tweaked for monitor 
(different gamma or dunno??), at least some win dvd ripping tools allow to 
select between tv and pc style yuv2rgb conversion.
-- 
Best Regards,
        Atmos
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