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Layers and transparency Core Image

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Layers and transparency Core Image

Subject: Layers and transparency Core Image
From: leenoori <email@hidden>
Date: Sat, 23 Dec 2006 17:12:47 +0100

What Core Image filters would I need to use to take a source image and layer a semi-transparent version of another image on top?

I guess CISourceOverCompositing is part of the solution, but I don't know how to make the overlaid image transparent. I suspect that CIColorMatrix might help but I haven't yet been able to figure out how to use it.

I'd basically like to be able to do this with an arbitrary number of layers.

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