日期:2014-05-17  浏览次数:20716 次

运行这个JAVA控制摄像头的程序
Java code
import javax.media.Player;
import javax.media.CaptureDeviceInfo;
import javax.media.MediaLocator;
import javax.swing.*;
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import javax.media.control.FrameGrabbingControl;
import javax.media.Buffer;
import javax.media.util.BufferToImage;
import javax.media.format.VideoFormat;
import java.io.*;
import com.sun.image.codec.jpeg.*;
import javax.media.CaptureDeviceManager;
import javax.media.Manager;
import java.net.*;
import java.applet.*;

//import javax.swing.im
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Camera
    extends JFrame {
  private static Player player = null;
  private CaptureDeviceInfo device = null;
  private MediaLocator locator = null;
  private Buffer buffer = null;
  private BufferToImage b2i = null;
  private Image image;
  private ImageIcon iicon = new ImageIcon();
  boolean proportion = true;
  String str1 = "vfw:Logitech USB Video Camera:0";
  String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  Component component1;
  JLabel jLabel1 = new JLabel();
  public Camera() {
    super("troy的摄像机(无保存功能)");
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  public Image resize(int width, int height, Image source, boolean flag) {
    this.proportion = flag;
    int new_w;
    int new_h;
    Toolkit tk = Toolkit.getDefaultToolkit();
    Applet app = new Applet();
    MediaTracker mt = new MediaTracker(app);
    Image img = source;
    try {
      mt.addImage(img, 0);
      mt.waitForID(0);
    }
    catch (Exception e) {
      e.printStackTrace();
    }
    if (img.getWidth(null) == -1) {
      System.out.println(" can't read,retry!" + "<BR>");
      return null;
    }
    else {

      if (this.proportion == true) { //判断是否是等比缩放.
//为等比缩放计算输出的图片宽度及高度
        double rate1 = ( (double) img.getWidth(null)) / (double) width +
            0.1;
        double rate2 = ( (double) img.getHeight(null)) / (double) height +
            0.1;
        double rate = rate1 > rate2 ? rate1 : rate2;
        new_w = (int) ( ( (double) img.getWidth(null)) / rate);
        new_h = (int) ( ( (double) img.getHeight(null)) / rate);
      }
      else {
        new_w = width; //输出的图片宽度
        new_h = height; //输出的图片高度
      }
    }
    BufferedImage buffImg = new BufferedImage(new_w, new_h,
                                              BufferedImage.TYPE_INT_RGB);

    Graphics g = buffImg.createGraphics();

    g.setColor(Color.white);
    g.fillRect(0, 0, new_w, new_h);

    g.drawImage(img, 0, 0, new_w, new_h, null);

    g.dispose();
    try {
      OutputStream tempout = new
          FileOutputStream("C:\\temp.jpg");
      JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(tempout);
      encoder.encode(buffImg);
      tempout.close();

    }
    catch (Exception e) {
      e.printStackTrace();
    }
    return tk.createImage("C:\\temp.jpg");
  }

  public static void main(String[] args) {
    Camera camera1 = new Camera();
  }

  private void jbInit() throws Exception {

    component1 = Box.createGlue();
    //=====================初始化设备===================//
    component1.addNotify();
    device = CaptureDeviceManager.getDevice(str2);
    locator = device.getLocator();
    try {
      player = Manager.createRealizedPlayer(locator);
      player.start();

      if ( (component1 = player.getVisualComponent()) != null) {
        this.getContentPane().add(component1, null);
      }
    }
    catch (Exception e) {
      e.printStackTrace();