I was trying to use the template matching from ippcv and I realized that
the function that calculates the buffer size is always returning zero.
It's not being really used anymore, is it?

By the way, this function is misplaced on the Ippi manual. It's on the section dedicated to Canny edge detection/Edge Thresholding. I don't know what one has to do with the other. Another mistake in the manual is the function 'FilterBox'which is documented on a section 'Borders'.

That's all for the moment