java - 在 SWT Canvas 上显示 IplImage (JavaCV)

Question

我正在将 JavaCV 用于大学项目。它本质上是一个运动检测器。

我使用 OpenCVFrameGrabber 类从网络摄像头获取帧，我想在我的 GUI 上显示抓取的帧。

我正在使用 SWT，我认为将框架显示到 Canvas 组件中会很好。 我有一个问题，因为 OpenCVFrameGrabber 提供图像作为 IplImage 类的实例，而 SWT 使用 org.eclipse.swt.graphics.Image 图像类。

所以我应该以某种方式将图像从 IplImage 转换为 SWT Image。执行此操作的最佳方法是什么？

Answer 1

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingWorker;

import com.googlecode.javacpp.Loader;
import com.googlecode.javacv.*;
import com.googlecode.javacv.cpp.*;
import static com.googlecode.javacv.cpp.opencv_core.*;

@SuppressWarnings("serial")
public class CFrameTest extends JFrame {
    JButton jbtStart;
    JButton jbtStop;
    CanvasFrame frame;
    FrameGrabber grabber;
    IplImage grabbedImage;
    public CFrameTest() {
        super("test");
        setSize(250, 100);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new GridLayout(1, 2));
        jbtStart = new JButton("Start camera");
        jbtStop = new JButton("Stop camera");
        this.add(jbtStart);
        this.add(jbtStop);
        setVisible(true);
        jbtStart.addActionListener(
                new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        System.out.println("Startcap");
                        jbtStart.setEnabled(false);
                        jbtStop.setEnabled(true);
                        try {

                            (new CameraSwingWorker()).execute();
                            /*startCamera();*/


                        } catch (Exception ex) {
                            Logger.getLogger(CFrameTest.class.getName()).log(Level.SEVERE, null, ex);
                        }
                    }
                });
        jbtStop.addActionListener(
                new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        System.out.println("Stopcap");
                        jbtStart.setEnabled(true);
                        jbtStop.setEnabled(false);
                        frame.setVisible(false);
                    }
                });
        Loader.load(opencv_objdetect.class);
    }
    public static void main(String[] args) {
        CFrameTest testFrame = new CFrameTest();
    }
    public void startCamera() throws Exception {
        frame = new CanvasFrame("Test");
        grabber = new OpenCVFrameGrabber(0);
        CvMemStorage storage = CvMemStorage.create();
        grabber.start();
        grabbedImage = grabber.grab();
        while (frame.isVisible() && (grabbedImage = grabber.grab()) != null)
        {
            BufferedImage bfimg = grabbedImage.getBufferedImage();
            //grabbedImage.copyTo(bfimg);
            frame.showImage(bfimg);

            //frame.showImage(grabbedImage);
            cvClearMemStorage(storage);
        }
        grabber.stop();
    }


    class CameraSwingWorker extends SwingWorker<String, Object> {
        @Override
        public String doInBackground() {
            try {
                startCamera();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return "yeah";
        }

        @Override
        protected void done() {
            try {} catch (Exception ignore) {
            }
        }
    }




}

/*javax.swing.SwingWorker*/