ellipse_detection:改进的Hough变换可快速检测椭圆

This is the implementation of Hough transform using one-dimensional accumulator array and hierarchical pyramid. Build: > cmake . > make NOTE: Requires OpenCV (3.0 recommended). Run: > ./Ellipse_detection <input file> \[<output file>\] For example: > ./Ellipse_detection samples/s1.jpg This should print the parametres of the ellipse and write the image with detected ellipse to ellipse.jpg.