some mainstream image filter: boxfilter, fast guided filter, fast bilateral filter, permutohedral bilateral filter and propagated filter
- boxfilter
- fast guided filter
- fast bilateral filter
- permutohedral bilateral filter
- propagated filter
All original dependencies have been removed. Code could be run independently.
BOXFILTER Simple Interface
@param src image,single channel.
@param dst output image,single channel.
@param w width of image.
@param h height of image.
@param c channel of image, only c = 1.
@param r local window radius.
@return 0:ok; 1:error
int BoxfilterFilter(unsigned char *src, unsigned char *dst, int w, int h, int c, int r);
Fast Guided Filter Simple Interface
@param src image,single channel.
@param guidance guided image,single channel.
@param dst output image,single channel.
@param w width of image.
@param h height of image.
@param c channel of image, only c = 1.
@param r local window radius.
@param rp regularization parameter:eps.
@param sr subsampling ratio, sr>1:downscale; 0<sr<1:upscale.
@return 0:ok; 1:error
int FastGuidedFilter(unsigned char *src, unsigned char *guidance, unsigned char *dst, int w, int h, int c, int r, float rp, float sr);
FastBilateralFilter Simple Interface
@param src input image.
@param guidance guided image,single channel, only single channel is valid; invalid parameter in three channels.
@param dst output image.
@param w width of image.
@param h height of image.
@param c channel of image, only c = 1 or c = 3.
@param sigma_s filter sigma in the coordinate space. A larger value of the parameter means that farther pixels will influence each other as long as their colors are close enough (see sigmaColor ). When d>0, it specifies the neighborhood size regardless of sigmaSpace. Otherwise, d is proportional to sigmaSpace.
@param sigma_r filter sigma in the color space. A larger value of the parameter means that farther colors within the pixel neighborhood (see sigmaSpace) will be mixed together, resulting in larger areas of semi-equal color.
@return 0:ok; 1:error
int FastBilateralFilter(unsigned char *src, unsigned char *guidance, unsigned char *dst, int w, int h, int c, float sigma_s, float sigma_r);
PermutohedralBilateralFilter Simple Interface
@param src input image.
@param guidance guided image.
@param dst output image.
@param w width of image.
@param h height of image.
@param c channel of image, only c = 1 or c = 3.
@param sigma_s filter sigma in the coordinate space. A larger value of the parameter means that farther pixels will influence each other as long as their colors are close enough (see sigmaColor ). When d>0, it specifies the neighborhood size regardless of sigmaSpace. Otherwise, d is proportional to sigmaSpace.
@param sigma_r filter sigma in the color space. A larger value of the parameter means that farther colors within the pixel neighborhood (see sigmaSpace) will be mixed together, resulting in larger areas of semi-equal color.
@return 0:ok; 1:error
int PermutohedralBilateralFilter(unsigned char *src, unsigned char *guidance, unsigned char *dst, int w, int h, int c, float sigma_s, float sigma_r);
PropagatedFilter Simple Interface
@param src input image.
@param guidance guided image.
@param dst output image.
@param w width of image.
@param h height of image.
@param c channel of image, only c = 1 or c = 3.
@param r local window radius.
@param sigma_s filter sigma in the coordinate space. A larger value of the parameter means that farther pixels will influence each other as long as their colors are close enough (see sigmaColor ). When d>0, it specifies the neighborhood size regardless of sigmaSpace. Otherwise, d is proportional to sigmaSpace.
@param sigma_r filter sigma in the color space. A larger value of the parameter means that farther colors within the pixel neighborhood (see sigmaSpace) will be mixed together, resulting in larger areas of semi-equal color.
@return 0:ok; 1:error
int PropagatedFilter(unsigned char *src, unsigned char *guidance, unsigned char *dst, int w, int h, int c, int r, float sigma_s, float sigma_r);
Filter implementations are described in the paper:
Adams, Andrew, Jongmin Baek, and Myers Abraham Davis. "Fast High‐Dimensional Filtering Using the Permutohedral Lattice." Computer Graphics Forum. Vol. 29. No. 2. Blackwell Publishing Ltd, 2010.
He, Kaiming, Jian Sun, and Xiaoou Tang. "Guided image filtering." European conference on computer vision. Springer Berlin Heidelberg, 2010.
He K, Sun J. Fast guided filter[J]. arXiv preprint arXiv:1505.00996, 2015.
Paris, Sylvain, and Frédo Durand. "A fast approximation of the bilateral filter using a signal processing approach." European conference on computer vision. Springer Berlin Heidelberg, 2006.
Durand, Frédo, and Julie Dorsey. "Fast bilateral filtering for the display of high-dynamic-range images." ACM transactions on graphics (TOG). Vol. 21. No. 3. ACM, 2002.
Rick Chang, Jen-Hao, and Yu-Chiang Frank Wang. "Propagated image filtering." Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition. 2015.
Copyright (c) 2016-2017 Frotms([email protected])
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