Joint Bilateral filter

bfilter2 function performs two dimensional bilateral Gaussian filtering.

This function presents both bilateral filter and joint-bilateral filter. If you use the same image as image1 and image2, it is the normal bilateral filter; however, if you use different images in image1 and image2, you can use it as a joint-bilateral filter, where the intensity domain (range weight) calculations are performed using image2 and the spatial-domain (space weight) calculations are performed using image1.