RGBFilterApplet

import java.applet.*;
import java.awt.*;
import java.awt.image.*;



public class RGBFilterApplet extends Applet{

Image img;
Image newImg;

public void init(){
img=getImage(getDocumentBase(),"java.gif");
StripeFilter filter=new StripeFilter();
newImg=createImage(new FilteredImageSource(
img.getSource(), filter));
}

public void paint(Graphics g){
g.drawImage(img,0,0,this);
g.drawString("origin image",10,150);

g.drawImage(newImg,110,0,this);
g.drawString("stripe image",120,150);

}

}

class StripeFilter extends RGBImageFilter{
public int filterRGB(int x, int y, int rgb){
if ((x % 2)==0) return (0xffffffff);
return rgb;
}
}