filterimage.java

来自「Java程序设计实用教程源代码 本书源代码按章分别放置在不同的文件夹中,所有程」· Java 代码 · 共 35 行

import javax.swing.*;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.ImageIO;
public class filterImage extends JFrame {
  Image img1, img2;
  int width, height;
  public filterImage() {
    super("图像过滤");
    try {
      File f = new File("aa.jpg");
      img1 = ImageIO.read(f);
      width = ( (BufferedImage) img1).getWidth();
      height = ( (BufferedImage) img1).getHeight();
      setSize(width + 80, height + 100);
      img2 = img1;
      ImageFilter fil = new CropImageFilter(10, 5, 200, 150);
      ImageProducer prod = new FilteredImageSource(img1.getSource(),fil);
      img2 = createImage(prod);
    }
    catch (Exception e) {}
  }
  public void paint(Graphics g) {
    super.paint(g);
    g.drawImage(img1, 0, 0, this);
    g.drawImage(img2, width * 2 / 3, height * 5 / 7, this);
  }
  public static void main(String args[]) {
    filterImage app = new filterImage();
    app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    app.setVisible(true);
  }
}