Example usage for org.opencv.core Mat get

List of usage examples for org.opencv.core Mat get

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Introduction

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

Prototype

public int get(int row, int col, double[] data)

Source Link

Usage

From source file:OCV_EqualizeHist.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    // srcdst//from  w w  w .  java 2 s.  c  o  m
    int imw = ip.getWidth();
    int imh = ip.getHeight();
    byte[] srcdst_bytes = (byte[]) ip.getPixels();

    // mat
    Mat src_mat = new Mat(imh, imw, CvType.CV_8UC1);
    Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC1);

    // run
    src_mat.put(0, 0, srcdst_bytes);
    Imgproc.equalizeHist(src_mat, dst_mat);
    dst_mat.get(0, 0, srcdst_bytes);
}

From source file:OCV_HoughLinesP.java

License:Open Source License

private void showData(Mat lines) {
    // prepare the ResultsTable
    ResultsTable rt = OCV__LoadLibrary.GetResultsTable(true);

    // prepare the ROI Manager
    RoiManager roiMan = null;//www .j  a  v a2  s  . co m

    if (enAddRoi) {
        roiMan = OCV__LoadLibrary.GetRoiManager(true, true);
    }

    // show
    int num_lines = lines.rows();
    int[] line = new int[4];

    for (int i = 0; i < num_lines; i++) {
        lines.get(i, 0, line);

        int x1 = line[0];
        int y1 = line[1];
        int x2 = line[2];
        int y2 = line[3];

        rt.incrementCounter();
        rt.addValue("x1", x1);
        rt.addValue("y1", y1);
        rt.addValue("x2", x2);
        rt.addValue("y2", y2);

        if (enAddRoi && (roiMan != null)) {
            Line roi = new Line(x1, y1, x2, y2);
            roiMan.addRoi(roi);
        }
    }

    rt.show("Results");
}

From source file:OCV_MedianBlur.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    // srcdst//from  w ww.  j ava2  s .c om
    int imw = ip.getWidth();
    int imh = ip.getHeight();
    byte[] srcdst_bytes = (byte[]) ip.getPixels();

    // mat
    Mat src_mat = new Mat(imh, imw, CvType.CV_8UC1);
    Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC1);

    // run
    src_mat.put(0, 0, srcdst_bytes);
    Imgproc.medianBlur(src_mat, dst_mat, ksize);
    dst_mat.get(0, 0, srcdst_bytes);
}

From source file:airhockeyjava.detection.PS3EyeFrameGrabber.java

License:Open Source License

/**
 * Convert matrix into an image//from  www  . j a  va  2 s.c  o m
 * 
 * @param m
 *            matrix to be converted
 * @return Converted BufferedImage
 */
private static BufferedImage toBufferedImage(Mat m) {
    int type = BufferedImage.TYPE_BYTE_GRAY;
    if (m.channels() > 1) {
        type = BufferedImage.TYPE_3BYTE_BGR;
        // System.out.println("3 Channel BufferedImage");
    }
    int bufferSize = m.channels() * m.cols() * m.rows();
    byte[] b = new byte[bufferSize];
    m.get(0, 0, b); // get all the pixels
    BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
    final byte[] targetPixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
    System.arraycopy(b, 0, targetPixels, 0, b.length);
    return image;
}

From source file:arlocros.Imshow.java

License:Apache License

/**
 * @param opencvImage//from  w w w .j  av a 2 s.  c o  m
 */
public static void show(Mat opencvImage) {

    Dimension frameSize = new Dimension(opencvImage.rows(), opencvImage.cols());
    if (frame == null) {
        frame = new Imshow("", frameSize.height, frameSize.width);
        frame.Window.setVisible(true);

        frame.Window.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        if (frame.SizeCustom) {
            Imgproc.resize(opencvImage, opencvImage, new Size(frame.Height, frame.Width));
        }
    }
    BufferedImage bufImage = null;
    try {

        int type = BufferedImage.TYPE_BYTE_GRAY;
        if (opencvImage.channels() > 1) {
            type = BufferedImage.TYPE_3BYTE_BGR;
        }
        int bufferSize = opencvImage.channels() * opencvImage.cols() * opencvImage.rows();
        byte[] b = new byte[bufferSize];
        opencvImage.get(0, 0, b);
        BufferedImage bufferedImage = new BufferedImage(opencvImage.cols(), opencvImage.rows(), type);
        final byte[] targetPixels = ((DataBufferByte) bufferedImage.getRaster().getDataBuffer()).getData();
        System.arraycopy(b, 0, targetPixels, 0, b.length);
        bufImage = bufferedImage;
        frame.image.setImage(bufImage);
        frame.Window.pack();
        frame.label.updateUI();
        //frame.Window.setVisible(true);
    } catch (RuntimeException e) {
        logger.info("Exception while visualizing.", e);
    }
}

From source file:attendance_system_adder.cv.image.java

public BufferedImage Mat2BufferedImage(Mat m) {
    int type = BufferedImage.TYPE_BYTE_GRAY;
    if (m.channels() > 1) {
        type = BufferedImage.TYPE_3BYTE_BGR;
    }//  ww w.j  a v  a  2s. c  om
    int bufferSize = m.channels() * m.cols() * m.rows();
    byte[] b = new byte[bufferSize];
    m.get(0, 0, b); // get all the pixels
    BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
    final byte[] targetPixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
    System.arraycopy(b, 0, targetPixels, 0, b.length);
    return image;

}

From source file:balldetection.Webcam.java

public static Image toBufferedImage(Mat m) {
    int type = BufferedImage.TYPE_BYTE_GRAY;
    if (m.channels() > 1) {
        Mat m2 = new Mat();
        Imgproc.cvtColor(m, m2, Imgproc.COLOR_BGR2RGB);
        type = BufferedImage.TYPE_3BYTE_BGR;
        m = m2;/*from ww  w. j a  va  2  s .c o m*/
    }
    byte[] b = new byte[m.channels() * m.cols() * m.rows()];
    m.get(0, 0, b); // get all the pixels
    BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
    image.getRaster().setDataElements(0, 0, m.cols(), m.rows(), b);
    return image;
}

From source file:bgslibrary.Utils.java

License:Open Source License

static final public BufferedImage toBufferedImage(Mat m) {
    int type = BufferedImage.TYPE_BYTE_GRAY;
    if (m.channels() > 1)
        type = BufferedImage.TYPE_3BYTE_BGR;
    int bufferSize = m.channels() * m.cols() * m.rows();
    byte[] b = new byte[bufferSize];
    m.get(0, 0, b); // get all the pixels
    BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
    final byte[] targetPixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
    System.arraycopy(b, 0, targetPixels, 0, b.length);
    return image;
}

From source file:bollettini.BullettinCompiler.java

public void show() {
    //resize to show
    Size size = new Size(1100, 335);
    Mat resize = new Mat();
    Imgproc.resize(bullettin, resize, size);

    //create image
    int type = BufferedImage.TYPE_BYTE_GRAY;
    int bufferSize = resize.channels() * resize.cols() * resize.rows();
    byte[] b = new byte[bufferSize];
    resize.get(0, 0, b); // get all the pixels
    BufferedImage image = new BufferedImage(resize.cols(), resize.rows(), type);
    final byte[] targetPixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
    System.arraycopy(b, 0, targetPixels, 0, b.length);

    ImageIcon icon = new ImageIcon(image);

    //create image and show
    View view = new View();
    view.init(this);
    view.setIcon(icon);/* www .  jav a 2 s .c om*/
    view.setVisible(true);
    view.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}

From source file:by.zuyeu.deyestracker.core.detection.DemoPanel.java

/**
 * Converts/writes a Mat into a BufferedImage.
 *
 * @param matrix Mat of type CV_8UC3 or CV_8UC1
 * @return BufferedImage of type TYPE_3BYTE_BGR or TYPE_BYTE_GRAY
 *///from  ww w .  j ava  2  s .co  m
public boolean convertMatToBufferedImage(Mat matBGR) {

    int width = matBGR.width(), height = matBGR.height(), channels = matBGR.channels();
    byte[] sourcePixels = new byte[width * height * channels];
    matBGR.get(0, 0, sourcePixels);
    // create new image and get reference to backing data
    image = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
    final byte[] targetPixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
    System.arraycopy(sourcePixels, 0, targetPixels, 0, sourcePixels.length);

    return true;
}