Documentation inaccurate: Hough circles (Bug #3253)
The documentation mentions two examples, one which has sliders. This is apparently copied from the HoughLines documentation, and no example for Hough Circles is available with parameter sliders.
Hi just updated the Hough Circle tutorial demo to add a threshold slider https://github.com/Itseez/opencv/pull/1812. Note that for lines there is the Standard Hough Transform and Probabilistic Hough Transform, whereas to detect circles there currently is only one implementation, Gradient Hough Transform, so had to modify documentation slightly too.
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