@class NSNumber, CIImage; @interface CIContrastEnhancer : CIFilter { CIImage *inputImage; } @property (retain, nonatomic) NSNumber *inputIntensity; @property (retain, nonatomic) NSNumber *inputLocal; @property (retain, nonatomic) NSNumber *inputScale; @property (retain, nonatomic) NSNumber *inputPerceptual; + (id)customAttributes; - (id)outputImage; @end