atilimcetin / guided-filter Goto Github PK

How about guided filter with multiple guidance images? How to calculate a and b?

The equation references in the code appear to be referring to an old version of the paper. For example, this line references an equation with a sigma:

https://github.com/atilimcetin/guided-filter/blob/master/guidedfilter.cpp#L133

However, equation 14 in the final paper does not have a sigma in it:

http://kaiminghe.com/publications/pami12guidedfilter.pdf

I think the code means to reference equation 19 instead.

Hi, and thank you for making this code available! I am trying top use it to clean up edges (as in the feathering example). This works great, but it is also adding grey noise to the rest of the image. Am I doing something wrong?

Using the settings:

           int r = 60;
	  double eps = 1e-6;
	  eps *= 255 * 255;  

	  cv::resize(image, image, cv::Size(1920, 1080));
	  cv::Mat matte = segmentor.Predict(image, "person");
	  cv::Mat q = guidedFilter(image, matte, r, eps);

What can I do to keep the feathering to the edges only?