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CoreImage and deep images

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CoreImage and deep images

Subject: CoreImage and deep images
From: Kenny Leung <email@hidden>
Date: Wed, 24 Aug 2005 08:52:57 -0700

Hi All.

I would like to use CoreImage to dynamically enhance x-ray images. These images take up the bottom 12 bits in a 16-bit tiff. When I load them up in a little example in Quartz Composer, it seems to only read the top 8 bits of the 16 bit tiff. This makes some sense, as the image needs to be turned into a 32-bit RGBA texture to get onto the GPU. (correct me if I'm wrong).

My current thinking is to split the 16-bit tiff into 2 8-bit tiffs, then create a kernel with two inputs, and stitch the data back together inside the kernel.

Is this the right way to go, or is there some way to make CoreImage understand my 16-bit tiff?

Any help is much appreciated!

-Kenny

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