Example usage for org.opencv.core Mat channels

Introduction

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

Prototype

public int channels() 

Source Link

Usage

From source file:frmMain.java

public static BufferedImage mat2Img(Mat in) {
    BufferedImage out;/*from   ww  w .  ja v a 2  s  . c  om*/
    byte[] data = new byte[in.width() * in.height() * (int) in.elemSize()];
    int type;
    in.get(0, 0, data);

    if (in.channels() == 1)
        type = BufferedImage.TYPE_BYTE_GRAY;
    else
        type = BufferedImage.TYPE_3BYTE_BGR;

    out = new BufferedImage(in.width(), in.height(), type);

    out.getRaster().setDataElements(0, 0, in.width(), in.height(), data);
    return out;
}

---

From source file:Video.java

public BufferedImage matToBufferedImage(Mat matrix) {
    int cols = matrix.cols();
    int rows = matrix.rows();
    int elemSize = (int) matrix.elemSize();
    byte[] data = new byte[cols * rows * elemSize];
    int type;/*from  w  w w  .j  a v a  2  s  .  co m*/

    matrix.get(0, 0, data);

    switch (matrix.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;

    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;

        // bgr to rgb
        byte b;
        for (int i = 0; i < data.length; i = i + 3) {
            b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;

    default:
        return null;
    }

    BufferedImage image = new BufferedImage(cols, rows, type);
    image.getRaster().setDataElements(0, 0, cols, rows, data);

    return image;
}

---

From source file:Ko.java

License:Open Source License

/**
* Converts a cv::Mat to a BufferedImage so that it plays nicely 
* with Java./*from   w ww  .  j  av  a2s .c  o m*/
* @param m
*          The Mat to convert.
* @return
*          A BufferedImage version of the Mat.
*/
private static 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);
    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:OctoEye.java

License:Open Source License

public BufferedImage getBufferedImage(Mat m) {
    byte[] buffer = new byte[m.rows() * m.cols() * m.channels()];
    m.get(0, 0, buffer);/*from w  w  w  .  j  a  v  a 2  s.  com*/

    int type = BufferedImage.TYPE_BYTE_GRAY;
    if (m.channels() > 1) {
        type = BufferedImage.TYPE_3BYTE_BGR;
        for (int i = 0; i < buffer.length; i = i + 3) {
            byte b = buffer[i];
            buffer[i] = buffer[i + 2];
            buffer[i + 2] = b;
        }
    }

    BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
    System.arraycopy(buffer, 0, ((DataBufferByte) image.getRaster().getDataBuffer()).getData(), 0,
            buffer.length);

    return image;
}

---

From source file:airhockeyjava.detection.PS3EyeFrameGrabber.java

License:Open Source License

/**
 * Convert matrix into an image//from   w  ww  .j a  v a  2 s  .  com
 * 
 * @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  ava  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;
    }/*www.  j av  a  2  s  .c o  m*/
    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;//ww w  .j  a  v a2  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);/* ww w  .  j  a  v a  2  s  . c o m*/
    view.setVisible(true);
    view.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• »