[FFmpeg-user] colorchannelmixer: perceptual gamma

[Simon Taylor]

On Sat, 23 Jan 2021 at 21:34, Paul B Mahol <onemda at gmail.com> wrote:

> On Sat, Jan 23, 2021 at 6:32 PM Simon Taylor <simon.taylor.uk at gmail.com>
> wrote:
>
> > Question: Is there a way to make ffmpeg's colorchannelmixer use
> perceptual
> > gamma?
> >
>
> Added pl option to colorchannelmixer. It is designed to preserve overall
> rgb lightness.
> Its behavior is similar but not exact with gimp. So with your input using
> also pl=1 option
> will remove blue tint.
> You need latest ffmpeg build with that commit included.
>

Wow, that was a lot of effort to go to for what may be an obscure corner
case. Thanks very much, I'll compile and test. Much appreciated!

Simon