@class CIImage, NSNumber; @interface CISharpenLuminance : CIFilter @property (retain, nonatomic) CIImage *inputImage; @property (retain, nonatomic) NSNumber *inputSharpness; @property (retain, nonatomic) NSNumber *inputRadius; + (id)customAttributes; - (BOOL)_isIdentity; - (id)_kernel; - (id)outputImage; @end