Java(opencv) 窗体打开摄像头

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整个程序下载地址：Java(opencv) 窗体打开摄像头，并做一个灰度话处理，以后有关图像处理的和opencv的没有太大的区别

在testVideo项目下创建VideoIO包，包下新建ShowVideo.java窗体应用。

直接来看ShowVideo.java程序内容部分：

package VedioIO;import java.awt.EventQueue;import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JButton;import org.opencv.core.Core;import org.opencv.core.Mat;import org.opencv.videoio.VideoCapture;import org.opencv.imgproc.Imgproc;import tool.mat2BufferedImage;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;public class ShowVedio {static{System.loadLibrary(Core.NATIVE_LIBRARY_NAME);}private JFrame frame;static JLabel label;static int flag=0;/** * Launch the application. */public static void main(String[] args) {EventQueue.invokeLater(new Runnable() {public void run() {try {ShowVedio window = new ShowVedio();window.frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}});//操作VideoCapture camera=new VideoCapture();camera.open(1);if(!camera.isOpened()){System.out.println("Camera Error");}else{Mat frame=new Mat();while(flag==0){camera.read(frame);Mat gray=new Mat(frame.rows(),frame.cols(),frame.type());Imgproc.cvtColor(frame, gray, Imgproc.COLOR_RGB2GRAY);label.setIcon(new ImageIcon(mat2BufferedImage.matToBufferedImage(gray)));try{Thread.sleep(100);}catch(InterruptedException e){e.printStackTrace();}}}}/** * Create the application. */public ShowVedio() {initialize();}/** * Initialize the contents of the frame. */private void initialize() {frame = new JFrame();frame.setBounds(100, 100, 798, 600);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.getContentPane().setLayout(null);JButton btnNewButton = new JButton("拍照");btnNewButton.addMouseListener(new MouseAdapter() {@Overridepublic void mouseClicked(MouseEvent arg0) {flag=1;}});btnNewButton.setBounds(20, 20, 113, 27);frame.getContentPane().add(btnNewButton);label=new JLabel("");label.setBounds(50, 50, 640, 480);frame.getContentPane().add(label);}}

关于

import tool.mat2BufferedImage;

在上一篇文章中已经贴出来了，这里就不写了。

Java(opencv)窗体中显示图像。mat2BufferedImage可以查看这篇文章

结果显示：

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