Javacv调用摄像头采集图像

来源：互联网发布：什么是网络谣言编辑：程序博客网时间：2024/06/05 12:05
直接贴代码
import org.bytedeco.javacpp.opencv_core;import org.bytedeco.javacv.*;import org.bytedeco.javacv.Frame;import org.bytedeco.javacv.FrameGrabber.Exception;import javax.imageio.ImageIO;import javax.swing.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.image.BufferedImage;import java.awt.image.DataBufferByte;import java.awt.image.WritableRaster;import java.io.File;import java.io.IOException;import static org.bytedeco.javacpp.opencv_core.cvReleaseImage;/** * 作者：Haibo.Liu * 描述： * 日期： 2017/5/5 * QQ：836915746 */public class Pic implements Runnable {    public static void main(String[] args) throws FrameGrabber.Exception {        Pic p = new Pic();        p.startCamera();    }    private static Timer timer;    private static int width, height;    static BufferedImage bImage;    public TimerAction timerAction;    class TimerAction implements ActionListener {        @Override        public void actionPerformed(ActionEvent arg0) {            System.out.println("=====================================================================");            try {                ImageIO.write(bImage, "jpg", new File("d:/a.jpg"));            } catch (IOException e) {                e.printStackTrace();            }        }    }    public void startCamera() throws FrameGrabber.Exception {        OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);        grabber.start(); // 开始获取摄像头数据        OpenCVFrameConverter.ToIplImage converter = new OpenCVFrameConverter.ToIplImage();//转换器        Frame frame = grabber.grab();        opencv_core.IplImage grabbedImage = converter.convert(frame);//抓取一帧视频并将其转换为图像，至于用这个图像用来做什么？加水印，人脸识别等等自行添加        width = grabbedImage.width();        height = grabbedImage.height();        bImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);        //显示器监控当前图像        Graphics2D bGraphics = bImage.createGraphics();        CanvasFrame canvas = new CanvasFrame("Camera", 1);        canvas.setCanvasSize(width, height);        timer = new Timer(1400, timerAction);// 设置每x秒保存一次照片。        timer.start();        while ((frame = grabber.grab()) != null) {            //注释掉下行代码，及cavas.isVisibal，在Linux上可能不会出现警告            canvas.showImage(frame);            bGraphics.drawImage(iplToBufImgData(grabbedImage), null, 0, 0);        }        cvReleaseImage(grabbedImage);        grabber.stop();        canvas.dispose();    }    public static BufferedImage iplToBufImgData(opencv_core.IplImage mat) {        if (mat.height() > 0 && mat.width() > 0) {            BufferedImage image = new BufferedImage(mat.width(), mat.height(), BufferedImage.TYPE_3BYTE_BGR);            WritableRaster raster = image.getRaster();            DataBufferByte dataBuffer = (DataBufferByte) raster.getDataBuffer();            byte[] data = dataBuffer.getData();            mat.getByteBuffer().get(data);            return image;        }        return null;    }    @Override    public void run() {        try {            startCamera();        } catch (Exception e) {            e.printStackTrace();        }    }}
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