Set template to search

hough.setTemplate(templ)
hough.setTemplate(edges, dx, dy)
hough.setTemplate(..., 'OptionName', optionValue, ...)

Input

• templ template, 8-bit 1-channel image
• edges template edges
• dx template x-derivative of the same size as edges and single-precision floating type.
• dy template y-derivate of the same size and type as dx.

Options

• Center Template center [x,y]. The default [-1,-1] will use [size(templ,2) size(templ,1)]./2 as center.

In the first variant of the function (with the templ input), the edges are internally calculated using the cv.Canny filter, and the derivatives dx and dy using cv.Sobel operator.