java实现摄像头截图功能

java实现摄像头截图功能

本文为大家分享了java摄像头截图的具体代码，供大家参考，具体内容如下

本来sun有个jmf组件可以很方便的实现摄像头截图的，不过这版本后来停止更新了，当前官网最新版本为Java Media Framework (JMF) 2.1.1e，下载回来，在windows 7 32位上使用，居然不能运行，网上另外找了个jmf的替代框架fmj使用，截图实现代码：

package com.pengo.capture;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

import javax.media.MediaLocator;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JTextField;

import net.sf.fmj.ui.application.CaptureDeviceBrowser;

import net.sf.fmj.ui.application.ContainerPlayer;

import net.sf.fmj.ui.application.PlayerPanelPrefs;

public class CameraFrame extends JFrame{

private static int num = 0;

public CameraFrame() throws Exception{

this.setTitle("摄像头截图应用");

this.setSize(480, 500);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

final JPanel cameraPanel = new JPanel();

this.getContentPane().setLayout(new BorderLayout());

this.getContentPane().add(cameraPanel, BorderLayout.CENTER);

ContainerPlayer containerPlayer = new ContainerPlayer(cameraPanel);

MediaLocator locator = CaptureDeviceBrowser.run(null); //弹出摄像头设备选择

// MediaLocator locator = null;

// GlobalCaptureDevicePlugger.addCaptureDevices();

// Vector vectorDevices = CaptureDeviceManager.getDeviceList(null);

// if (vectorDevices == null || vectorDevices.size() == 0)

// {

// System.out.println("没有摄像头===");

// return;

// }

// //选择第一个摄像头设备

// for ( int i = 0; i < vectorDevices.size(); i++ )

// {

// CaptureDeviceInfo infoCaptureDevice = (CaptureDeviceInfo) vectorDevices.get(i);

// System.out.println("设备名===============" + infoCaptureDevice.getName());

// //选择第一个设备为程序使用,如果存在多个设备时，则第一个可能不是摄像头

// locator = infoCaptureDkFOBGWevice.getLocator();

// break;

// }

PlayerPanelPrefs prefs = new PlayerPanelPrefs();

containerPlayer.setMediaLocation(locator.toExternalForm(), prefs.autoPlay);

JPanel btnPanel = new JPanel(new BorderLayout());

final JTextField path = new JTextField("E:\\camera");

path.setColumns(30);

btnPanel.add(path, BorderLayout.WEST);

JButton okBtn = new JButton("截图");

okBtn.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

Dimension imageSize = cameraPanel.getSize();

BufferedImage image = new BufferedImage(imageSize.width,

imageSize.height, BufferedImage.TYPE_INT_ARGB);

Graphics2D g = image.createGraphics();

cameraPanel.paint(g);

g.dispose();

try {

String filePath = path.getText();

File file = new File(filePath);

if(file.exists() == false){

file.mkdirs();

}

ImageIO.write(image, "png", new File(file.getAbsolutePath() + "/" + num + ".png"));

num++;

} catch (IOException ex) {

ex.printStackTrace();

}

}

});

btnPanel.add(okBtn, BorderLayout.EAST);

this.getContentPane().add(btnPanel, BorderLayout.SOUTH);

}

public static void main(String[] args) throws Exception{

CameraFrame camera = new CameraFrame();

camera.setVisible(true)http://;

}

}

源码下载：java摄像头截图

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