#include <cv.h>

#include <cv.hpp>

#include <highgui.h>

#include <highgui.hpp>

int main()

{

        using namespace cv;

        namedWindow("orig", CV_WINDOW_AUTOSIZE);

        namedWindow("canny", CV_WINDOW_AUTOSIZE);

        namedWindow("hough", CV_WINDOW_AUTOSIZE);

        Mat orig = cv::imread("1.jpg", 0);

        Mat hough;

        orig.copyTo(hough);

        Mat canny;

        Canny(orig, canny, 100, 50); // reproduce Canny-Filtering as in Hough-Circles

        int bestRad = 20;

        int minRad = bestRad / 1.3;

        int maxRad = bestRad * 1.3;

        vector<Vec3f> circles;  // detect circles

        HoughCircles(orig, circles, CV_HOUGH_GRADIENT,

                1,   // accu-scaling

                20,  // minDist

                100, // CannyParam

                10,  // minAccuCount

                minRad,

                maxRad);

        // Draw Circles into image in gray

        for( size_t i = 0; i < circles.size(); i++ )

        {

                Point center(cvRound(circles[i][0]), cvRound(circles[i][1]));

                int radius = cvRound(circles[i][2]);

                // draw the circle center

                circle( hough, center, 3, Scalar(0), -1, 8, 0 );

                // draw the circle outline

                circle( hough, center, radius, Scalar(200), 1, 8, 0 );

        }

        // Draw reference circles

        Point c(bestRad * 3, bestRad * 3);

        circle(hough, c, bestRad, 255);

        circle(hough, c, minRad, 255);

        circle(hough, c, maxRad, 255);

        cv::imshow("orig", orig);

        cv::imshow("canny", canny);

        cv::imshow("hough", hough);

        cv::waitKey();

        return 0;

}