CODEWITHSUNDEEP
javaopencv
Roman
Roman

Reputation: 3

MatOfPoint cartesian coordinates

    List<MatOfPoint> contours = new ArrayList<MatOfPoint>();
    String filename = "cannystopa4.png";

    System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
    Mat rgbImage = Imgcodecs.imread("foto.jpg");
    Mat imageCny = new Mat();
    Imgproc.Canny(rgbImage, imageCny, 50, 150, 3, true);

    Imgproc.findContours(imageCny, contours , new Mat(), Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_NONE);

    int i;
    for(i = 0; i<contours.size(); i++) {
          System.out.println(contours.get(i));
    }

How can I get cartesian coordinates from Arraylist of MatOfPoint?

Upvotes: 0

Views: 1646

Answers (1)

laune
laune

Reputation: 31290

Iterate the contours list and for each MatOfPoint iterate the list of Point objects it contains.

for( MatOfPoint mop: contours ){
    for( Point p: mop.toList() ){
        ... p.x, p.y ... // another coordinate
    }
}

Upvotes: 3

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