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public class CameraUtils {
private static CameraThread cameraThread = null;
/**
* outFile 存储地址 列如 D:\\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);
//新建一个窗口
CanvasFrame canvas = new CanvasFrame("摄像头");
canvas.setAlwaysOnTop(true);
canvas.setLayout(null);
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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(20, 550, 200, 100);
jButton1.setBounds(250, 550, 200, 100);
jButton2.setBounds(470, 550, 200, 100);
canvas.add(jButton);
canvas.add(jButton1);
canvas.add(jButton2);
jButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (cameraThread != null) {
cameraThread.terminate();
}
jButton1.setEnabled(true);
}
});
jButton1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jButton1.setEnabled(false);
cameraThread = new CameraThread(height, height, canvas, grabber, outFile);
cameraThread.start();
}
});
jButton2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
cameraThread.terminate();
canvas.dispose();
}
});
cameraThread = new CameraThread(width, height, canvas, grabber, outFile);
cameraThread.start();
}
/**
* 输出图片
* @param f 视频一帧图片
* @param targetFileName
*/
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 CameraThread 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 CameraThread(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());
//50毫秒刷新一次图像
Thread.sleep(50);
}
OpenCVFrameConverter.ToIplImage converter =new OpenCVFrameConverter.ToIplImage();
IplImage src = null;
Frame capturedFrame = null;
capturedFrame= grabber.grab();
src =converter.convert(capturedFrame);
capturedFrame =converter.convert(src);
CameraUtils.doExecuteFrame(grabber.grab(),outFile);
grabber.stop();//停止抓取
} catch (org.bytedeco.javacv.FrameGrabber.Exception | InterruptedException e) {
e.printStackTrace();
}
}
public void terminate() {
stop = false;
}
}
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