CIFilter blur issues

Scott Stevenson sstevenson at mac.com
Tue Dec 18 00:28:13 PST 2007


On Dec 18, 2007, at 12:18 AM, mikevann wrote:

> I'm doing a gaussian blur using Core Image (CIGaussianBlur).  The  
> problem I'm having is the edges are not being extended during the  
> blur so all four edges fade into transparency.  Is there a way to  
> control how the CIGaussianBlur treats edges, such as  
> kvImageEdgeExtend does for vImage convolves, or at least set the  
> background color used for the blur?

The Core Image Filter Reference doesn't mention anything.  Can you  
just manually increase the bounds of the image before blurring?

     - Scott



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