AS3 - Chroma Keying in pure AS

Question

Let's say I have a bitmap with 3 circles (red , purple , yellow), I would like (in pure AS, no PixelBender) to post process the image and set the alpha of the yellow pixels to 0.

Can I use the ColorMatrixFilter class, or should I iterate over the entire bitmapData?

This example uses AS2, I'm looking for something similar in AS3

It should not be too difficult to port that example's code to AS3, or at least read it and see what it's doing. Especially the `ColorMatrix` class is almost AS3 already, apart from some minor syntax changes. — frankhermes, Dec 30 '13 at 15:23

score 0 · Answer 1 · answered Dec 30 '13 at 14:57

0

I think this ColorMatrixFilter would do what you are asking

matrix.concat([1, 1, 0, 0, 0]);

answered Dec 30 '13 at 14:57

The_asMan

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AS3 - Chroma Keying in pure AS

1 Answers1