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
@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
@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
@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
@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
@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);