java 摄像头_javacv调用摄像头拍照

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javacv1.3.3 版本

import java.awt.Font;

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.swing.JButton;

import org.bytedeco.javacpp.opencv_core.IplImage;

import org.bytedeco.javacv.CanvasFrame;

import org.bytedeco.javacv.Frame;

import org.bytedeco.javacv.Java2DFrameConverter;

import org.bytedeco.javacv.OpenCVFrameConverter;

import org.bytedeco.javacv.OpenCVFrameGrabber;

public class CameraUtil{

private static CamerThread camerThread = null ;

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

Camera("E:\\test\\2.jpg", 700, 700);

}

/*

* outFile 存储地址 列如 E:\\test\\2.jpg

* width height 窗口大小 自己设置一下

*/

public static void Camera(String outFile,int width ,int height) {

OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);

grabber.setImageWidth(width);

grabber.setImageHeight(height);

CanvasFrame canvas = new CanvasFrame("摄像头");//新建一个窗口

canvas.setAlwaysOnTop(true);

canvas.setLayout(null);

Font font= new Font("微软雅黑", Font.BOLD, 30);

JButton jButton = new JButton("确认上传");

JButton jButton1 = new JButton("继续拍照");

jButton1.setEnabled(false);

JButton jButton2 = new JButton("关闭");

jButton.setFont(font);

jButton1.setFont(font);

jButton2.setFont(font);

jButton.setBounds(30, 550, 200, 100);

jButton1.setBounds(260, 550, 200, 100);

jButton2.setBounds(480, 550,200, 100);

canvas.add(jButton);

canvas.add(jButton1);

canvas.add(jButton2);

jButton.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

if(camerThread!=null) {

camerThread.terminate();

}

jButton1.setEnabled(true);

}

});

jButton1.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

jButton1.setEnabled(false);

camerThread = new CamerThread(height, height, canvas, grabber, outFile);

camerThread.start();

}

});

jButton2.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

camerThread.terminate();

//System.exit(0);//退出

canvas.dispose();

}

});

camerThread = new CamerThread(height, height, canvas, grabber, outFile);

camerThread.start();

}

public static void doExecuteFrame(Frame f, String targetFileName) {

if (null ==f ||null ==f.image) {

return;

}

Java2DFrameConverter converter =new Java2DFrameConverter();

targetFileName=targetFileName.replace("mp4", "jpg");

System.out.println("targetFileName"+targetFileName);

String imageMat ="jpg";

String FileName =targetFileName;

BufferedImage bi =converter.getBufferedImage(f);

File output =new File(FileName);

try {

ImageIO.write(bi,imageMat,output);

}catch (IOException e) {

e.printStackTrace();

}

}

}

class CamerThread extends Thread{

// 此变量必须加上volatile

private volatile boolean stop = true;

private int width;

private int height;

private CanvasFrame canvas;

private OpenCVFrameGrabber grabber;

private String outFile;

public CamerThread(int width, int height, CanvasFrame canvas, OpenCVFrameGrabber grabber, String outFile) {

super();

this.width = width;

this.height = height;

this.canvas = canvas;

this.grabber = grabber;

this.outFile = outFile;

}

@Override

public void run() {

int i=0;

try {

grabber.start(); //开始获取摄像头数据

while(stop){

if(i<2) {

canvas.setSize(width, height);

i++;

}

canvas.showImage(grabber.grab());

Thread.sleep(100);//50毫秒刷新一次图像

//获取摄像头图像并放到窗口上显示， 这里的Frame frame=grabber.grab(); frame是一帧视频图像

}

OpenCVFrameConverter.ToIplImage converter =new OpenCVFrameConverter.ToIplImage();

IplImage src = null;

Frame capturedFrame = null;

capturedFrame= grabber.grab();

src =converter.convert(capturedFrame);

capturedFrame =converter.convert(src);

CameraUtil.doExecuteFrame(grabber.grab(),outFile);

grabber.stop();//停止抓取

} catch (org.bytedeco.javacv.FrameGrabber.Exception | InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

// 线程终止

public void terminate() {

stop = false;

}

}