@class CIImage, CIVector, NSNumber; @interface CIConvolution9Horizontal : CIFilter @property (retain, nonatomic) CIImage *inputImage; @property (retain, nonatomic) CIVector *inputWeights; @property (retain, nonatomic) NSNumber *inputBias; + (id)customAttributes; - (BOOL)_isIdentity; - (id)outputImage; @end