java语言调用摄像头（不是照相机）

需要jar包如下：

1、 webcam-capture-0.3.12.jar

2、bridj-0.6.2.jar

下面代码可以实现调用摄像头的效果

package service;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;

import com.github.sarxos.webcam.Webcam;
import com.github.sarxos.webcam.WebcamPanel;
import com.github.sarxos.webcam.WebcamResolution;
import com.github.sarxos.webcam.WebcamUtils;
import com.github.sarxos.webcam.util.ImageUtils;

public class CaptureDemo
{
private static int num = 0;

public static void main(String[] args) throws IOException
{
final Webcam webcam = Webcam.getDefault();
webcam.setViewSize(WebcamResolution.VGA.getSize());
WebcamPanel panel = new WebcamPanel(webcam);
panel.setFPSDisplayed(true);
panel.setDisplayDebugInfo(true);
panel.setImageSizeDisplayed(true);
panel.setMirrored(true);

final JFrame window = new JFrame("摄像头");
window.addWindowListener(new WindowAdapter() {

@Override
public void windowClosed(WindowEvent e)
{
webcam.close();
window.dispose();
}
});
// window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JButton button = new JButton("截图");
window.add(panel, BorderLayout.CENTER);
window.add(button, BorderLayout.SOUTH);
window.setResizable(true);
window.pack();
window.setVisible(true);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
button.setEnabled(false);
String fileName = "D://" + num;
WebcamUtils.capture(webcam, fileName, ImageUtils.FORMAT_PNG);
SwingUtilities.invokeLater(new Runnable() {

@Override
public void run()
{
JOptionPane.showMessageDialog(null, "截图成功");
button.setEnabled(true);
num++;
return;
}
});
}
});
}
}

效果图

java语言调用摄像头（不是照相机）

注经验证发现上面代码无法对照相机进行操作，仅可以对摄像头进行操作，C++可以对照相机实现操作。