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16, 32 or 64 bit Bitmap data for a CIImage

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16, 32 or 64 bit Bitmap data for a CIImage

Subject: 16, 32 or 64 bit Bitmap data for a CIImage
From: Robert Brown <email@hidden>
Date: Sat, 18 Mar 2006 13:23:48 -0700

Normally if I want to grab bitmap data from a CIImage I'd create an NSBitmapImageRep, then an NSGraphicsContext, get a CIContext from that and draw the CIImage onto it. Presto, a bitmap representing the CIImage.

The problem is, NSBitmapImageRep and NSGraphicsContext only appear to support 8-bit/channel images. How do I get a bitmap that's 16-bit integer or 32- or 64-bit float (ie, the full bit depth of the Core Image system)?

Thanks!


---------------------------------------------------
Robb Brown
Seaman Family MR Research Centre
Calgary, Alberta, Canada

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