Example usage for org.opencv.core Mat Mat

Introduction

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

Prototype

public Mat() 

Source Link

Usage

From source file:attendance_system_adder.video.java

public synchronized void displayVideo(int index) {
    isdisplayClose = false;//from   www. j  a  va  2 s .co m
    if (vc == null) {
        vc = new VideoCapture(index);
    }
    if (img == null) {
        img = new image();
    }
    if (mat == null) {
        mat = new Mat();
    }

    vdf.setVisible(true);

    while (true) {
        if (isdisplayClose) {
            img.closeDisplayFrame();
            vc.release();
            break;
        }
        vc.read(mat);
        grayMat = img.RGBtoGRAY(mat);
        Mat2BufferedImage = img.Mat2BufferedImage(grayMat);
        img.displayImage(Mat2BufferedImage);

    }
}

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From source file:attendance_system_adder.video.java

public void faceDetctDisplayVideo(int index) {
    isdisplayClose = false;/*from  www.  j a  va2  s.  com*/
    if (vc == null) {
        vc = new VideoCapture(index);
    }
    if (img == null) {
        img = new image();
    }
    if (mat == null) {
        mat = new Mat();
    }

    vdf.setVisible(true);

    while (true) {
        if (isdisplayClose) {
            img.closeDisplayFrame();
            vc.release();
            break;
        }
        vc.read(mat);
        grayMat = img.RGBtoGRAY(mat);
        //            Mat2BufferedImage= img.Mat2BufferedImage(grayMat);
        img.faceDetctDisplayImage(grayMat);

        //            try {
        //                this.sleep(50);
        //            } catch (InterruptedException ex) {
        //                Logger.getLogger(video.class.getName()).log(Level.SEVERE, null, ex);
        //            }

    }
}

---

From source file:balldetection.BallDetection.java

/**
 * @param args the command line arguments
 * @throws java.io.IOException/*from   w  ww  . j av  a2 s.c o m*/
 */
public static void main(String[] args) throws IOException {

    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
            | javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(CameraWindow.class.getName()).log(java.util.logging.Level.SEVERE,
                null, ex);
    }
    //</editor-fold>

    CameraWindow cWindow = new CameraWindow();
    cWindow.setVisible(true);

    int radius = 0;
    System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

    //intialization of matrices
    Mat circles = new Mat();
    gray = new Mat();
    hsv = new Mat();
    filter = new Mat();
    dst = new Mat();

    camera = new VideoCapture(0);
    Mat frame = new Mat();
    Webcam.ImagePanel panel = Webcam.createPanel(camera, "src");
    Webcam.ImagePanel panel2 = Webcam.createPanel(camera, "filter");
    Webcam.ImagePanel panel3 = Webcam.createPanel(camera, "dst");

    while (true) {

        camera.read(frame);
        src = frame;

        GaussianBlur(src, src, new Size(3, 3), 2, 2);
        Imgproc.cvtColor(src, hsv, Imgproc.COLOR_BGR2HSV);
        Imgproc.cvtColor(src, gray, Imgproc.COLOR_BGR2GRAY);

        Core.inRange(gray, new Scalar(20, 100, 100), new Scalar(30, 255, 255), gray);
        Core.inRange(hsv, new Scalar(cWindow.get_hLower(), cWindow.get_sLower(), cWindow.get_vLower()),
                new Scalar(cWindow.get_hUpper(), cWindow.get_sUpper(), cWindow.get_vUpper()), filter);

        Core.inRange(src, new Scalar(cWindow.get_hLower(), cWindow.get_sLower(), cWindow.get_vLower()),
                new Scalar(cWindow.get_hUpper(), cWindow.get_sUpper(), cWindow.get_vUpper()), dst);

        double[] temp = hsv.get(hsv.rows() / 2, hsv.cols() / 2);
        System.out.println(temp[0] + ", " + temp[1] + ", " + temp[2] + ", " + radius);
        //System.out.println("Current Distance from ball: " + ((2.5366*radius) - 123.02));

        Imgproc.HoughCircles(filter, circles, CV_HOUGH_GRADIENT, cWindow.get_dp(), filter.rows() / 2,
                cWindow.get_param1(), cWindow.get_param2(), cWindow.get_minCircleSize(),
                cWindow.get_maxCircleSize());

        for (int i = 0; i < circles.cols(); i++) {
            Point center = new Point(Math.round(circles.get(0, i)[0]), Math.round(circles.get(0, i)[1]));
            radius = (int) Math.round(circles.get(0, i)[2]);
            // draw the circle center
            Core.circle(src, center, 3, new Scalar(0, 255, 0), -1, 8, 0);
            // draw the circle outline
            Core.circle(src, center, radius, new Scalar(0, 0, 255), 3, 8, 0);
            //System.out.println("" + circles.get(0,0)[0] + ", " + circles.get(0,0)[1] + ", " + circles.get(0,0)[2]);
        }

        panel.updateImage(toBufferedImage(src));
        panel2.updateImage(toBufferedImage(filter));
        panel3.updateImage(toBufferedImage(dst));
    }
}

---

From source file:balldetection.BallDetection.java

public static void takeScreenshot(int mat) {
    Date tempDate = new Date();
    Mat matFrame = new Mat();

    switch (mat) {
    case 1://  w w  w .  j a v  a 2 s  .  c  o  m
        matFrame = src;
        break;
    case 2:
        matFrame = dst;
        break;
    case 3:
        matFrame = hsv;
        break;
    default:
        matFrame = filter;
        break;
    }

    //camera.read(matFrame);
    Highgui.imwrite("screenshots\\ Screenshot " + counter + " -"
            + String.format("%1$s %2$tb %2$td at %2$tH %2$tM %2$tS", "", tempDate) + ".jpeg", matFrame);
    counter++;
}

---

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  w  w w  .j  a va2  s .  c om
    }
    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:balldetection.Webcam.java

public static void main(String[] args) throws Exception {
    System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
    //  VideoCapture camera = new VideoCapture(0);
    Mat frame = new Mat();
    ImagePanel panel = createPanel(camera, "camera");
    while (true) {
        camera.read(frame);//from   w  ww  .  ja v  a  2 s  . c  om
        panel.updateImage(toBufferedImage(frame));
    }
}

---

From source file:balldetection.Webcam.java

public static void takeScreenshot() {
    Mat matFrame = new Mat();
    camera.read(matFrame);//from  w w w.jav a  2 s . c o m
    Highgui.imwrite("screenshots\\screenshot " + counter + ".jpeg", matFrame);
    counter++;
}

---

From source file:bikecalibration.fxml.controller.MainWindowController.java

private void forwardPlayVideo(int start) throws Exception {
    LOGGER.log(Level.INFO, "forwardPlayVideo Started");
    cap.set(Videoio.CAP_PROP_POS_FRAMES, start);
    Mat frame = new Mat();
    int frameCounter = start;
    while (cap.read(frame)) {
        if (!videoForwardPlayProperty.get()) {
            Thread.currentThread().interrupt();
            break;
        }/*from  w  w  w . j a  v  a 2 s .  c  o  m*/
        long startMillis = System.currentTimeMillis();
        final int currentCounter = frameCounter;
        final Image currentImage = Utils.matToImage(frame);
        Platform.runLater(() -> {
            videoSlider.setValue(currentCounter);
        });
        Platform.runLater(() -> {
            drawImage(currentImage);
        });
        currentVideoFrameNumberProperty.set(currentCounter);
        long endMillis = System.currentTimeMillis();
        long sleepMillis = (long) (1000 / videoInfo.FPS.get()) - (endMillis - startMillis);
        if (sleepMillis > 0) {
            try {
                Platform.runLater(() -> {
                    lblStatus.setText(String.format("%d FPS", (long) videoInfo.FPS.get()));
                });
                Thread.sleep(sleepMillis);
            } catch (InterruptedException ex) {
                LOGGER.log(Level.SEVERE, ex.getMessage());
                Thread.currentThread().interrupt();
            }
        } else {
            final long fps = Utils.calculateFPS(startMillis, endMillis, 1);
            Platform.runLater(() -> {
                lblStatus.setText(String.format("%d FPS", fps));
            });
        }

        frameCounter++;
    }
    videoForwardPlayProperty.set(false);
    LOGGER.log(Level.INFO, "forwardPlayVideo Ended");
}

---

From source file:bikecalibration.fxml.controller.MainWindowController.java

private void reversePlayVideo(int start) throws Exception {
    LOGGER.log(Level.INFO, "reversePlayVideo started.");
    cap.set(Videoio.CAP_PROP_POS_FRAMES, start);
    Mat frame = new Mat();
    int frameCounter = start;
    while (cap.read(frame)) {
        if (!videoBackwardsPlayProperty.get()) {
            break;
        }//from  ww w  .  ja va  2s. c om
        long startMillis = System.currentTimeMillis();
        final int currentCounter = frameCounter;
        final Image currentImage = Utils.matToImage(frame);
        Platform.runLater(() -> {
            videoSlider.setValue(currentCounter);
        });
        Platform.runLater(() -> {
            drawImage(currentImage);
        });
        Platform.runLater(() -> {
            currentFrameNumberField.setText(String.format("%d", currentCounter));
        });
        currentVideoFrameNumberProperty.set(currentCounter);
        long endMillis = System.currentTimeMillis();
        long sleepMillis = (long) (1000 / videoInfo.FPS.get()) - (endMillis - startMillis);
        frameCounter--;
        if (frameCounter >= 0) {
            cap.set(Videoio.CAP_PROP_POS_FRAMES, frameCounter);
        } else {
            break;
        }
        if (sleepMillis > 0) {
            try {
                Platform.runLater(() -> {
                    lblStatus.setText(String.format("%d FPS", (long) videoInfo.FPS.get()));
                });
                Thread.sleep(sleepMillis);
            } catch (InterruptedException ex) {
                LOGGER.log(Level.SEVERE, ex.getMessage());
                Thread.currentThread().interrupt();
            }
        } else {
            final long fps = Utils.calculateFPS(startMillis, endMillis, 1);
            Platform.runLater(() -> {
                lblStatus.setText(String.format("%d FPS", fps));
            });
        }
    }
    videoBackwardsPlayProperty.set(false);
    LOGGER.log(Level.INFO, "reversePlayVideo ended.");
}

---

From source file:bikecalibration.OpenCvUtils.java

public static Mat getImageFromVideo(int position, VideoCapture cap) {
    Mat frame = new Mat();
    cap.set(Videoio.CAP_PROP_POS_FRAMES, position);
    cap.read(frame);/*from w  w  w  . ja v  a 2 s.c o  m*/
    return frame;
}

---

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