Java by API/java.awt.image/CropImageFilter

new CropImageFilter(int x, int y, int w, int h)

// This example is from the book _Java AWT Reference_ by John Zukowski.
// Written by John Zukowski.  Copyright (c) 1997 O"Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or
import java.applet.Applet;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.image.CropImageFilter;
import java.awt.image.FilteredImageSource;
public class MainClass extends Applet {
  Image i, j;
  public void init() {
    MediaTracker mt = new MediaTracker(this);
    i = getImage(getDocumentBase(), "rosey.jpg");
    mt.addImage(i, 0);
    try {
      mt.waitForAll();
      int width = i.getWidth(this);
      int height = i.getHeight(this);
      j = createImage(new FilteredImageSource(i.getSource(), new CropImageFilter(width / 3,
          height / 3, width / 3, height / 3)));
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }
  public void paint(Graphics g) {
    g.drawImage(i, 10, 10, this); // regular
    if (j != null) {
      g.drawImage(j, 10, 90, this); // cropped
    }
  }
}