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Niels Elburg | 19 Nov 2008 19:03
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Re: Gamma correction in YUV space

Hey Salsaman,

Its sufficient to apply the gamma correction only on Y of the YUV,
The formula is just multiply by gamma factor yes,
but look out for flavours of YUV where scaling could become
an issue if you clip 0-255 or 16-235

Cheers,
Niels


On Wed, Nov 19, 2008 at 4:10 PM, <salsaman <at> xs4all.nl> wrote:
Hi all,
is there a formula for gamma correction in YUV space ? I would imagine it
would be something like:

Y clamped -> Y unclamped -> multiply by gamma_factor

where gamma_factor is the usual R -> R`, G -> G`, B -> B` factor.

Is that correct ?

Cheers,
Salsaman.
http://lives.sourceforge.net

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