imagecapture.java

jmf拍照程序。开发环境是eclipse

package video;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

public class ImageCapture extends JFrame {
	 int xpoint = 40, ypoint = 40;
	 private Image image;
	 int width,hight;
	 JButton jb=new JButton("save");
	 JTextField jtf=new JTextField(30);
	 String fileAddr;
	 public ImageCapture(Image img) {
		 super("ImageCapture"); 
		 this.image=img;
		 
		 width=image.getWidth(null);
		 hight=image.getHeight(null);
		    
		 setLayout(new BorderLayout());
		 JPanel jp=new JPanel();
		 jp.setLayout(new GridLayout(1,2));
		 jp.add(jb);
		 jp.add(jtf);
		 
		 jb.addActionListener(jbEvent);
		 
		 add(BorderLayout.SOUTH,jp);
		 
		 pack();
		 setSize(400, 400);
		 setVisible(true);
		
	}
	 
	 JB  jbEvent=new JB();
	 
	class JB implements ActionListener{

		public void actionPerformed(ActionEvent e) {
			if(jtf.getText()==null){
				fileAddr="d://image.jpg";
			}else{
				fileAddr=jtf.getText();
			}
			BufferedImage bi = (BufferedImage) createImage(width,hight);
			Graphics2D g2 = bi.createGraphics();
			g2.drawImage(image, null, null);
			FileOutputStream out = null;
			try
			{
				File f = new File(fileAddr);
				out = new FileOutputStream(f);
			}
			catch (java.io.FileNotFoundException io)
			{
				System.out.println("File Not Found");
			}

			JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
			JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
			param.setQuality(1f, false);//不压缩图像
			encoder.setJPEGEncodeParam(param);
			try
			{
				encoder.encode(bi);
				out.close();
			}
			catch (java.io.IOException io)
			{
				System.out.println("IOException");
			}
			
		}
		
	}
	
	
	public void paint(Graphics g) {
		System.out.println(g);
		 g.drawImage(image,xpoint,ypoint,this);
	  }
}