[FFmpeg-user] Color Channel Expression
Paul B Mahol
onemda at gmail.com
Mon Jul 31 11:30:20 EEST 2017
On 7/31/17, Jon bae <jonbae77 at gmail.com> wrote:
> is there a way to make simple channel expressions in ffmpeg.
> I would need to make something like this:
> input > red/alpha , green/alpha , blue/alpha > output
> I try this with the geq filter, but without success.
What exactly you tried?
Perhaps you want premultiply filter?
> Have you an idea, how I can do this?
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