@class CIImage, NSNumber; @interface CILineOverlay : CIFilter { NSNumber *inputNRNoiseLevel; NSNumber *inputNRSharpness; NSNumber *inputEdgeIntensity; NSNumber *inputThreshold; NSNumber *inputContrast; } @property (retain, nonatomic) CIImage *inputImage; + (id)customAttributes; - (id)outputImage; - (id)_CIColorControls; - (id)_CIComicNoiseReduction; - (id)_CISobelEdges; @end