----- "Michael Niedermayer" <[email protected]> wrote: 
>> If the pow function would be available a gamma correction would 
>> look like this: applyfn=255*pow(Y/255\,0.25):U:V
>
>no, thats not gamma correction

Yep, it should have been "a poor man's gamma like correction in 
YUV color space" :). 

Zeger Knops
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