src.main.java.org.roomwatcher.watcher.Watcher.java Source code

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Here is the source code for src.main.java.org.roomwatcher.watcher.Watcher.java

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package src.main.java.org.roomwatcher.watcher;

import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import javax.swing.JPanel;
import org.opencv.core.Mat;

/**
 *
 * @author Waldema
 */
public class Watcher extends JPanel {
    private static final long serialVersionUID = 1L;
    private BufferedImage image;

    public Watcher() {
        super();
    }

    public void watch() {
        Processor processor = new Processor();
    }

    /**  
    * 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  
    */
    public boolean MatToBufferedImage(Mat matBGR) {
        long startTime = System.nanoTime();
        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);
        long endTime = System.nanoTime();

        //System.out.println(String.format("Elapsed time: %.2f ms", (float)(endTime - startTime)/1000000));  
        return true;
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        if (this.image == null)
            return;
        g.drawImage(this.image, 10, 10, this.image.getWidth(), this.image.getHeight(), null);
        //g.drawString("This is my custom Panel!",10,20);  
    }
}