#import "GPUImageFilterGroup.h"
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@class GPUImageGaussianBlurFilter;
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@class GPUImageToonFilter;
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/** This uses a similar process as the GPUImageToonFilter, only it precedes the toon effect with a Gaussian blur to smooth out noise.
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*/
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@interface GPUImageSmoothToonFilter : GPUImageFilterGroup
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{
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GPUImageGaussianBlurFilter *blurFilter;
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GPUImageToonFilter *toonFilter;
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}
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/// The image width and height factors tweak the appearance of the edges. By default, they match the filter size in pixels
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@property(readwrite, nonatomic) CGFloat texelWidth;
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/// The image width and height factors tweak the appearance of the edges. By default, they match the filter size in pixels
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@property(readwrite, nonatomic) CGFloat texelHeight;
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/// The radius of the underlying Gaussian blur. The default is 2.0.
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@property (readwrite, nonatomic) CGFloat blurRadiusInPixels;
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/// The threshold at which to apply the edges, default of 0.2
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@property(readwrite, nonatomic) CGFloat threshold;
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/// The levels of quantization for the posterization of colors within the scene, with a default of 10.0
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@property(readwrite, nonatomic) CGFloat quantizationLevels;
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@end
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