I'm using the following code, and it works all right with black pixels:
ColorKeyAlphaEffect effect = new ColorKeyAlphaEffect();
Brush brush = Effect.ImplicitInput;
effect.Input = brush;
media.Effect = effect;
But what I really want to do is do a green screen of the movie in the MediaElement control. The movie has a lot of black, so the effect applying to black pixels doesn't work for us.
Is it possible to change it to green or any other color?