#import "GPUImageFilterGroup.h"
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@class GPUImageGaussianBlurFilter;
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/// A simulated tilt shift lens effect
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@interface GPUImageTiltShiftFilter : GPUImageFilterGroup
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{
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GPUImageGaussianBlurFilter *blurFilter;
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GPUImageFilter *tiltShiftFilter;
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}
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/// The radius of the underlying blur, in pixels. This is 7.0 by default.
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@property(readwrite, nonatomic) CGFloat blurRadiusInPixels;
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/// The normalized location of the top of the in-focus area in the image, this value should be lower than bottomFocusLevel, default 0.4
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@property(readwrite, nonatomic) CGFloat topFocusLevel;
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/// The normalized location of the bottom of the in-focus area in the image, this value should be higher than topFocusLevel, default 0.6
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@property(readwrite, nonatomic) CGFloat bottomFocusLevel;
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/// The rate at which the image gets blurry away from the in-focus region, default 0.2
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@property(readwrite, nonatomic) CGFloat focusFallOffRate;
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@end
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