Prendre une photo à partir d'une Webcam

/**
 *
 * @author found on the web
 */
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;

import javax.media.Buffer;
import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.Player;
import javax.media.control.FrameGrabbingControl;
import javax.media.format.VideoFormat;
import javax.media.util.BufferToImage;
import javax.swing.JButton;
import javax.swing.JComponent;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

public class WebcamCapture extends Panel implements ActionListener {

    public static Player player = null;
    public CaptureDeviceInfo di = null;
    public MediaLocator ml = null;
    public JButton capture = null;
    public Buffer buf = null;
    public Image img = null;
    public VideoFormat vf = null;
    public BufferToImage btoi = null;
    public ImagePanel imgpanel = null;

    public WebcamCapture() {
        setLayout(new BorderLayout());
        setSize(320, 550);

        imgpanel = new ImagePanel();
        capture = new JButton("Capture");
        capture.addActionListener(this);

        String str1 = "vfw:Logitech USB Video Camera:0";
        String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
        di = CaptureDeviceManager.getDevice(str2);
        ml = new MediaLocator("vfw://0");

        try {
            player = Manager.createRealizedPlayer(ml);
            player.start();
            Component comp;

            if ((comp = player.getVisualComponent()) != null) {
                add(comp, BorderLayout.NORTH);
            }
            add(capture, BorderLayout.CENTER);
            add(imgpanel, BorderLayout.SOUTH);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Frame f = new Frame("Webcam Capture");
        WebcamCapture cf = new WebcamCapture();

        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                playerclose();
                System.exit(0);
            }});

        f.add("Center", cf);
        f.pack();
        f.setSize(new Dimension(320, 550));
        f.setVisible(true);
    }

    public static void playerclose() {
        player.close();
        player.deallocate();
    }

    public void actionPerformed(ActionEvent e) {
        JComponent c = (JComponent) e.getSource();

        if (c == capture) {
            // Grab a frame
            FrameGrabbingControl fgc = (FrameGrabbingControl) player.getControl("javax.media.control.FrameGrabbingControl");
            buf = fgc.grabFrame();
            // Convert it to an image
            btoi = new BufferToImage((VideoFormat) buf.getFormat());
            img = btoi.createImage(buf);
            // show the image
            imgpanel.setImage(img);
            // save image
            saveJPG(img, "c:\\test.jpg");
        }
    }

    class ImagePanel extends Panel {

        public Image myimg = null;

        public ImagePanel() {
            setLayout(null);
            setSize(320, 240);
        }

        public void setImage(Image img) {
            this.myimg = img;
            repaint();
        }

        public void paint(Graphics g) {
            if (myimg != null) {
                g.drawImage(myimg, 0, 0, this);
            }
        }
    }

    public static void saveJPG(Image img, String s) {
        BufferedImage bi = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = bi.createGraphics();
        g2.drawImage(img, null, null);

        FileOutputStream out = null;
        try {
            out = new FileOutputStream(s);
        } catch (java.io.FileNotFoundException io) {
            System.out.println("File Not Found");
        }

        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
        JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
        param.setQuality(1.0f, false);
        encoder.setJPEGEncodeParam(param);

        try {
            encoder.encode(bi);
            out.close();
        } catch (java.io.IOException io) {
            System.out.println("IOException");
        }
    }
}