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Computer Vision with Python 3 by Saurabh Kapur

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Hough circle

The Hough circle is similar to the Hough line; only the equation changes here. For the Hough circle, we use the following equation of a circle, where (h, k) is the center of the circle and r is the radius :

Now, instead of the slope and intercept, the algorithm will find the coordinates of the center of the circle and its radius using the points in the image.

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