@class NSNumber; @interface CIHueSaturationValueGradient : CIFilter @property (retain, nonatomic) NSNumber *inputValue; @property (retain, nonatomic) NSNumber *inputRadius; @property (retain, nonatomic) NSNumber *inputSoftness; @property (retain, nonatomic) NSNumber *inputDither; @property (retain, nonatomic) id inputColorSpace; + (id)customAttributes; - (id)_kernel; - (id)outputImage; - (id)_kernelD; @end