[GEM-dev] YUV processing

[Mathieu Bouchard]

On Wed, 24 Mar 2004, B. Bogart wrote:

> I took a look at pix_compare and its close to what pix_mask did but
> the issue is the threshold. With pix_mask you have 8 bits worth of
> transparency data, where chroma-key and compare seem to only give you
> two choices per pixel, image1 or image2. This makes things like video
> noise really obvious and ugly. It would be great to have pix_mask
> functionality in*some* form.

I don't understand: why can't you just multiply your image by the
(greyscale) matte ?

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Mathieu Bouchard                       http://artengine.ca/matju