[vlc-devel] How to blend images only on Y channel?

[Rémi Denis-Courmont]

Le vendredi 31 août 2012 01:38:24, Peter Tap a écrit :
> Folks,
> 
> In my video filter, I need to blend an image with the movie being shown.
> However, I just want to blend them on the Y channel without modifying the
> other two channels. I am wondering if anyone can share any insight on how
> this can be done. For the moment, I am just using filter_configureBlend
> and blending on all channels.

I don't think there is a way to do that out of the box. You would probably 
need a new filter. The alpha channel is shared across all components.

-- 
Rémi Denis-Courmont
http://www.remlab.net/