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IKImageView offers an 'imageCorrection' property, which takes a CIFilter and, presumably, uses it when displaying the image.

When I tried using it recently, it didn't work for me. When I set the property to a new CIFilter instance, it remains nil.

Has anyone managed to use this successfully?

A: 

When I tried using it recently, it didn't work for me. When I set the property to a new CIFilter instance, it remains nil.

You probably didn't hook up your outlet to your image view, so the pointer in your outlet is nil, so you sent your setImageCorrection: message (whether implicit or explicit) to nil.

Peter Hosey
Nope. It's connected. I've been doing IB since 1991. :)
Jon Hendry
Also, I could see the IKImageView outlet's value in gdb, etc.
Jon Hendry