usb摄像头拍照（javacv--1）

下载jacaCV-0.7-bin.zip和javacv-0.7cppjars.zip解压

导入jacaCV-0.7-bin.zip中的javacpp.jar，javacv.jar      （如果导进去这两个jar包还有问题，就根据自己的系统和jdk选择jar包）

导入javacv-0.7cppjars.zip中jar包是根据jdk去选择的

 我的window7 64位  jdk是32位的   所以选择opencv-2.4.8-windows-x86.jar

 包导进去下面的源码就能用了。

源码：http://blog.csdn.net/ljsspace/article/details/6702178

源码：jacaCV-0.7-bin.zip当中README.txt

package asdf.asdf.asd;

import java.awt.Graphics2D;  

import java.awt.event.ActionEvent;  

import java.awt.event.ActionListener;  

import java.awt.event.MouseAdapter;  

import java.awt.event.MouseEvent;  

import java.awt.image.BufferedImage;  

import java.io.File;  

import java.io.IOException;  

  

import javax.imageio.ImageIO;  

import javax.swing.Timer;  

  

import com.googlecode.javacv.CanvasFrame;  

import com.googlecode.javacv.OpenCVFrameGrabber;  

import com.googlecode.javacv.cpp.opencv_core.IplImage;  

import static com.googlecode.javacv.cpp.opencv_core.cvReleaseImage;  

  

/** 

 *  

 * Use JavaCV/OpenCV to capture camera images 

 *  

 * There are two functions in this demo: 

 * 1) show real-time camera images  

 * 2) capture camera images by mouse-clicking anywhere in the JFrame,  

 * the jpg file is saved in a hard-coded path.  

 *  

 * @author ljs 

 * 2011-08-19 

 * 

 */  

public class CameraCapture {  

    public static String savedImageFile = "d:\\my.jpg";  

      

    //timer for image capture animation  

    static class TimerAction implements ActionListener {  

        private Graphics2D g;  

        private CanvasFrame canvasFrame;  

        private int width,height;  

          

        private int delta=10;  

        private int count = 0;  

          

        private Timer timer;  

        public void setTimer(Timer timer){  

            this.timer = timer;  

        }  

           

        public TimerAction(CanvasFrame canvasFrame){  

            this.g = (Graphics2D)canvasFrame.getCanvas().getGraphics();   

            this.canvasFrame = canvasFrame;  

            this.width = canvasFrame.getCanvas().getWidth();  

            this.height = canvasFrame.getCanvas().getHeight();  

        }  

        public void actionPerformed(ActionEvent e) {  

            int offset = delta*count;  

            if(width-offset>=offset && height-offset >= offset) {          

                g.drawRect(offset, offset, width-2*offset, height-2*offset);  

                canvasFrame.repaint();  

                count++;  

            }else{  

                //when animation is done, reset count and stop timer.  

                timer.stop();  

                count = 0;  

            }              

        }  

    }  

  

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

        //open camera source  

        OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);  

        grabber.start();  

          

        //create a frame for real-time image display  

        CanvasFrame canvasFrame = new CanvasFrame("Camera");  

        IplImage image = grabber.grab();  

        int width = image.width();  

        int height = image.height();  

        canvasFrame.setCanvasSize(width, height);  

          

        //onscreen buffer for image capture  

        final BufferedImage bImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);  

        Graphics2D bGraphics = bImage.createGraphics();       

          

        //animation timer  

        TimerAction timerAction = new TimerAction(canvasFrame);  

        final Timer timer=new Timer(10, timerAction);  

        timerAction.setTimer(timer);  

           

        //click the frame to capture an image  

        canvasFrame.getCanvas().addMouseListener(new MouseAdapter(){  

            public void mouseClicked(MouseEvent e){       

                timer.start(); //start animation  

                try {  

                    ImageIO.write(bImage, "jpg", new File(savedImageFile));  

                } catch (IOException e1) {  

                    e1.printStackTrace();  

                }                     

            }                  

        });  

          

        //real-time image display  

        while(canvasFrame.isVisible() && (image=grabber.grab()) != null){  

            if(!timer.isRunning()) { //when animation is on, pause real-time display  

                canvasFrame.showImage(image);     

                //draw the onscreen image simutaneously  

                bGraphics.drawImage(image.getBufferedImage(),null,0,0);    

            }  

        }  

          

        //release resources  

        cvReleaseImage(image);     

        grabber.stop();  

        canvasFrame.dispose();  

    }  

  

} 

http://www.cnblogs.com/zengdingxin/p/3671964.html