Example usage for org.opencv.core MatOfPoint toList

Introduction

In this page you can find the example usage for org.opencv.core MatOfPoint toList.

Prototype

public List<Point> toList() 

Source Link

Usage

From source file:emotion.Eyebrow.java

public static void Harris(Mat img, boolean rightEyeFlag) {
    //Harris point extraction
    Mat harrisTestimg;//ww w.  j  av  a2 s.co m
    harrisTestimg = img.clone();
    cvtColor(harrisTestimg, harrisTestimg, Imgproc.COLOR_BGR2GRAY);
    threshold(harrisTestimg, harrisTestimg, 200, 255, Imgproc.THRESH_BINARY_INV);
    Mat struct = Imgproc.getStructuringElement(Imgproc.MORPH_CROSS, new Size(3, 3));
    erode(harrisTestimg, harrisTestimg, struct);
    dilate(harrisTestimg, harrisTestimg, struct);
    imwrite("intermediateHaaris.jpg", harrisTestimg);
    harrisTestimg.convertTo(harrisTestimg, CV_8UC1);
    ArrayList<MatOfPoint> contours = new ArrayList<>();
    Mat hierarchy = new Mat();

    Imgproc.findContours(harrisTestimg, contours, hierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_NONE);

    //System.out.println("Average Y for contours:");
    float[] averageY = new float[contours.size()];
    for (int i = 0; i < contours.size(); ++i) {
        //We calculate mean of Y coordinates for each contour
        for (int j = 0; j < contours.get(i).total(); ++j) {
            int val = (int) contours.get(i).toArray()[j].y;
            averageY[i] += val;
        }
        averageY[i] /= contours.get(i).total();
        //System.out.println(i+") "+averageY[i]);

        if (averageY[i] <= img.height() / 2 && //We consider just up half of an image
                contours.get(i).total() >= img.width()) //and longer than threshold
            Imgproc.drawContours(harrisTestimg, contours, i, new Scalar(255, 255, 255));
        else
            Imgproc.drawContours(harrisTestimg, contours, i, new Scalar(0, 0, 0));
    }

    MatOfPoint features = new MatOfPoint();
    Imgproc.goodFeaturesToTrack(harrisTestimg, features, 100, 0.00001, 0);

    //We draw just 2 extreme points- first and last
    Point eyebrowsPoints[] = new Point[2];
    for (int i = 0; i < features.toList().size(); i++) {
        if (i == 0) {
            eyebrowsPoints[0] = new Point(harrisTestimg.width() / 2, 0);
            eyebrowsPoints[1] = new Point(harrisTestimg.width() / 2, 0);
        }
        if (features.toArray()[i].x < eyebrowsPoints[0].x
                && features.toArray()[i].y < harrisTestimg.height() / 2) {
            eyebrowsPoints[0] = features.toArray()[i];
        }
        if (features.toArray()[i].x > eyebrowsPoints[1].x
                && features.toArray()[i].y < harrisTestimg.height() / 2) {
            eyebrowsPoints[1] = features.toArray()[i];
        }
    }
    StaticFunctions.drawCross(img, eyebrowsPoints[1], StaticFunctions.Features.EYEBROWS_ENDS);
    StaticFunctions.drawCross(img, eyebrowsPoints[0], StaticFunctions.Features.EYEBROWS_ENDS);
    imwrite("testHaris.jpg", img);
    if (rightEyeFlag) {
        EyeRegion.rightInnerEyebrowsCorner = eyebrowsPoints[0];
        EyeRegion.rightInnerEyebrowsCorner.x += Eye.rightRect.x;
        EyeRegion.rightInnerEyebrowsCorner.y += Eye.rightRect.y;

        EyeRegion.rightOuterEyebrowsCorner = eyebrowsPoints[1];
        EyeRegion.rightOuterEyebrowsCorner.x += Eye.rightRect.x;
        EyeRegion.rightOuterEyebrowsCorner.y += Eye.rightRect.y;
    } else {
        EyeRegion.leftInnerEyebrowsCorner = eyebrowsPoints[1];
        EyeRegion.leftInnerEyebrowsCorner.x += Eye.leftRect.x;
        EyeRegion.leftInnerEyebrowsCorner.y += Eye.leftRect.y;

        EyeRegion.leftOuterEyebrowsCorner = eyebrowsPoints[0];
        EyeRegion.leftOuterEyebrowsCorner.x += Eye.leftRect.x;
        EyeRegion.leftOuterEyebrowsCorner.y += Eye.leftRect.y;
    }
}

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From source file:opencv_ext.TGG_OpenCV_Util.java

private static MatOfPoint hull2Points(MatOfInt hull, MatOfPoint contour) {
    // Contains indexes of pointing to corner points of contours
    ArrayList<Integer> indexes = new ArrayList<>(hull.toList());
    // Contains list of points found in contour
    List<Point> pointList = contour.toList();
    // Destination for corner points
    ArrayList<Point> points = new ArrayList<>();
    // Reads corner points into `points`
    for (Integer index : indexes) {
        points.add(pointList.get(index));
    }/*  w  w w  . ja  v a2s  . c o  m*/
    // Converts list to Mat representation
    MatOfPoint mop = new MatOfPoint();
    mop.fromList(points);
    return mop;
}

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From source file:org.ar.rubik.Rhombus.java

License:Open Source License

/**
 * Rhombus Constructor//from w w  w. ja va  2 s . c o m
 * 
 * 
 * @param polygon
 */
public Rhombus(MatOfPoint polygon) {

    this.polygonMatrix = polygon;
    polygonPointList = polygon.toList();
    polygonePointArray = polygon.toArray();
}

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From source file:org.pattern.image.viewer.renderer.RenderUtil.java

/**
 * Creates countour path from {@link MatOfPoint}.
 * @param contour /*  ww w  .j  ava  2  s .  c  o  m*/
 * @return 
 */
public static Path2D createContour(MatOfPoint contour) {
    List<Point> points = contour.toList();
    Path2D.Double path = new Path2D.Double();

    Iterator<Point> it = points.iterator();
    if (it.hasNext()) {
        Point point = it.next();
        path.moveTo(point.x, point.y);
    }

    while (it.hasNext()) {
        Point point = it.next();
        path.lineTo(point.x, point.y);
    }

    path.closePath();
    return path;
}

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From source file:org.sahyagiri.rpi.opencv.DetectCar.java

License:Mozilla Public License

private MatOfPoint combineContourPoints(ArrayList<MatOfPoint> contours) {
    MatOfPoint matPoints = new MatOfPoint();
    List<Point> points = new ArrayList<Point>();
    for (MatOfPoint point : contours) {
        points.addAll(point.toList());
    }//from w w  w . ja  va2s . co  m
    matPoints.fromList(points);
    return matPoints;
}

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