I need instructions on implementing a houghes circle code using android studio to an app. I do not know where to put everything and need detailed instructions on how to create the app and save it onto an android device.

iCannyUpperThreshold = 100;
iMinRadius = 20;
iMaxRadius = 400;
iAccumulator = 300;

Imgproc.HoughCircles(thresholdImage, circles, Imgproc.CV_HOUGH_GRADIENT, 
         2.0, thresholdImage.rows() / 8, iCannyUpperThreshold, iAccumulator, 
         iMinRadius, iMaxRadius);

if (circles.cols() > 0)
    for (int x = 0; x < circles.cols(); x++) 
        double vCircle[] = circles.get(0,x);

        if (vCircle == null)

        Point pt = new Point(Math.round(vCircle[0]), Math.round(vCircle[1]));
        int radius = (int)Math.round(vCircle[2]);

        // draw the found circle
        Core.circle(destination, pt, radius, new Scalar(0,255,0), iLineThickness);
        Core.circle(destination, pt, 3, new Scalar(0,0,255), iLineThickness);
1 Year
Discussion Span
Last Post by Rajan_7

Mirty, I too was a little lost on my first Android app. So I googled "my first android app tutorial" and completed those. As to your questions, I think those would be in those tutorials. That is, complete the tutorials to learn how to make an app. Or at least your first simple app.

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