[gst-devel] Make transparent a specific color inside a video

Kapil Agrawal kapil.agl at gmail.com
Fri Oct 30 12:59:17 CET 2009


Probably videobox and videomixer may fix it

-kapil

On Fri, Oct 30, 2009 at 4:55 PM, megabug <megabug at autistici.org> wrote:

>
> Hi,
>
>
> I have two videos:
> 1 - An animated "title" text video (letters moving around with a complex
> schema) with a black background.
> 2 - Another video taken with a camera
>
>
> Using libpigment, I tried to put the video 1 over video 2 but the black
> background of titles is not transparent and covers the second video. If I
> try to change alpha value on the whole video the black will be mixed with
> the second video making it darker.
>
>
> Is it possible to make transparent a only part of the video with a specific
> color (the black on the first video in my case)?
>
>
> --
> megabug
>
>
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-- 
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