Example usage for org.opencv.core Point Point

Introduction

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

Prototype

public Point() 

Source Link

Usage

From source file:karthik.Barcode.ImageInfo.java

License:Open Source License

ImageInfo(Mat src) {
    src_original = src;//from   w  w  w .  j av a  2s  .  com
    gradient_direction = new Mat();
    gradient_magnitude = new Mat();

    scharr_x = new Mat();
    scharr_y = new Mat();
    mask = new Mat();

    // create List of Point's for CandidateMatrixBarcode
    for (int r = 0; r < 4; r++) {
        newCornerPoints.add(new Point());
        transformedPoints.add(new Point());
    }
}

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From source file:org.openpnp.vision.FluentCv.java

License:Open Source License

/**
 * Draw the infinite line defined by the two points to the extents of the image instead of just
 * between the two points. From://from  www  .ja v  a  2s. c o  m
 * http://stackoverflow.com/questions/13160722/how-to-draw-line-not-line-segment-opencv-2-4-2
 * 
 * @param img
 * @param p1
 * @param p2
 * @param color
 */
public static void infiniteLine(Mat img, Point p1, Point p2, Color color) {
    Point p = new Point(), q = new Point();
    // Check if the line is a vertical line because vertical lines don't
    // have slope
    if (p1.x != p2.x) {
        p.x = 0;
        q.x = img.cols();
        // Slope equation (y1 - y2) / (x1 - x2)
        float m = (float) ((p1.y - p2.y) / (p1.x - p2.x));
        // Line equation: y = mx + b
        float b = (float) (p1.y - (m * p1.x));
        p.y = m * p.x + b;
        q.y = m * q.x + b;
    } else {
        p.x = q.x = p2.x;
        p.y = 0;
        q.y = img.rows();
    }
    Core.line(img, p, q, colorToScalar(color));
}

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From source file:org.pattern.detection.contour.ContourDetectionAlgorithm.java

/** Calculates center of particle. */
private Point calcCog(MatOfPoint contour) {
    Moments moments = Imgproc.moments(contour);
    Point cog = new Point();
    cog.x = moments.get_m10() / moments.get_m00();
    cog.y = moments.get_m01() / moments.get_m00();
    return cog;/*from  w w w .  ja  v a2 s .  c  o m*/
}

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From source file:simeav.filtros.instanciaciones.SeparadorTextoEstandar.java

@Override
public void separarTexto(Mat origin, int umbral_radio) {
    Mat original = origin.clone();//from ww  w.  j  av  a  2s .c  o  m
    imagenSinTexto = original.clone();
    imagenTexto = Mat.zeros(original.size(), CvType.CV_8U);
    imagenTexto = imagenTexto.setTo(new Scalar(255, 255, 255));
    Mat imGrises = new Mat();
    Mat bw = new Mat();
    Imgproc.cvtColor(original, imGrises, Imgproc.COLOR_BGR2GRAY);
    Imgproc.GaussianBlur(imGrises, bw, new Size(1, 1), 0);
    Imgproc.threshold(bw, bw, 200, 250, Imgproc.THRESH_BINARY_INV);
    ArrayList<MatOfPoint> contornos = Utils.detectarContornos(bw);
    for (int i = 0; i < contornos.size(); i++) {
        MatOfPoint2f contorno2f = new MatOfPoint2f();
        contorno2f.fromList(contornos.get(i).toList());
        float[] radius = new float[1];
        Point centro = new Point();
        Imgproc.minEnclosingCircle(contorno2f, centro, radius);
        double a = Imgproc.contourArea(contornos.get(i));
        if (radius[0] <= umbral_radio) {
            Imgproc.drawContours(imagenSinTexto, contornos, i, new Scalar(255, 255, 255), -1);
            Imgproc.drawContours(imagenTexto, contornos, i, new Scalar(0, 0, 0), -1);
        }
    }
}

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