[FFmpeg-user] Make white of photo transparant

[Paul B Mahol]

On Wed, Jun 29, 2022 at 10:05 AM Bouke / Videotoolshed <
bouke at videotoolshed.com> wrote:

> On 29 Jun 2022, at 01:48, Cecil Westerhof via ffmpeg-user <
> ffmpeg-user at ffmpeg.org> wrote:
> >
> >
> > The background of the photo is white. Would it be possible to make
> > that transparent? (So where there is white, I do not see white, but
> > the video.)
>
> This is called Luma (or Luminance) key.
>
> Yes, it is possible, yes, it will be ugly unless you know what you are
> doing, and IMHO, FFmpeg is not the tool for this.
> (But someone recently mentioned a GUI for filters, that might help you big
> time on this one.)
>
>
Use colorkey filter, and set color as white.


> Bouke
>
>
>
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