Comment capturer une photo à partir de mon webcam en java?
MasterMbg
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10 avril 2013 à 13:12
salut! je fais une application d'impression des cartes d'identidé mais je suis un tout petit peu bloqué. je n'arrive pas à trouver mon webcam à partir de mon application alors que j'utilise le code comme réussi de l'internet. lorsque je lance mon appli, le message d'erreur suivant s'affiche:
javax.media.NoPlayerException: Cannot find a Player for :vfw://0
at javax.media.Manager.createPlayerForContent(Manager.java:1412)
at javax.media.Manager.createPlayer(Manager.java:417)
at javax.media.Manager.createRealizedPlayer(Manager.java:553)
at Formulaires.capture.(capture.java:73)
at Formulaires.capture$3.run(capture.java:167)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Quelqu'un pourrait-il m'aider?
Voici mon code:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* capture.java
*
* Created on 8 avr. 2013, 13:15:38
*/
package Formulaires;
import javax.swing.UIManager;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
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 com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import javax.swing.JPanel;
/**
*
* @author ally
*/
public class capture extends javax.swing.JFrame {
public static Player player = null;
public CaptureDeviceInfo di = null;
public MediaLocator ml = null;
public Buffer buf = null;
public Image img = null;
public VideoFormat vf = null;
public BufferToImage btoi = null;
ImagePanel imgpanel = null;
/** Creates new form capture */
public capture() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
System.out.println(e.getMessage());
}
initComponents();
///////////////////
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");
imgpanel = new ImagePanel();
////////
try {
player = Manager.createRealizedPlayer(ml);
player.start();
Component comp;
if ((comp = player.getVisualComponent()) != null) {
this.add(comp, BorderLayout.NORTH);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
capture = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane(imgpanel);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
formWindowClosing(evt);
}
});
capture.setText("Capture");
capture.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
captureActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(146, 146, 146)
.addComponent(capture))
.addGroup(layout.createSequentialGroup()
.addGap(80, 80, 80)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 233, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(87, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(42, 42, 42)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 184, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 40, Short.MAX_VALUE)
.addComponent(capture)
.addContainerGap())
);
pack();
}// </editor-fold>
private void formWindowClosing(java.awt.event.WindowEvent evt) {
// TODO add your handling code here:
System.exit(0);
playerclose();
}
private void captureActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
// 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");
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new capture().setVisible(true);
}
});
}
////////////////////
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");
}
}
/////////////////////
public static void playerclose() {
player.close();
player.deallocate();
}
///////////////////////
// Variables declaration - do not modify
private javax.swing.JButton capture;
private javax.swing.JScrollPane jScrollPane1;
// End of variables declaration
}
////////////////
class ImagePanel extends JPanel {
public Image myimg = null;
public ImagePanel() {
setLayout(null);
setSize(320, 240);
}
public void setImage(Image img) {
this.myimg = img;
repaint();
}
@Override
public void paintComponent(Graphics g) {
if (myimg != null) {
g.drawImage(myimg, 0, 0, this);
}
}
}
////////////////////
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Comment capturer une photo à partir de mon webcam en java?
