@class CIImage, NSNumber; @interface CIGaussianBlurXY : CIFilter @property (retain, nonatomic) CIImage *inputImage; @property (retain, nonatomic) NSNumber *inputSigmaX; @property (retain, nonatomic) NSNumber *inputSigmaY; + (id)customAttributes; - (BOOL)_isIdentity; - (id)outputImage; @end