This is the code now im using for animated gif resizing.
But the thing is this will not work in my debian enviroment.
I set DISPLAY veriable as 'export DISPLAY=:1.0' than it works in
console application. but not in Tomcat enviroment.
* How can I set DISPLAY in Tomcat5?
* Can anybody point me to right direction on this issue?
Thanks in advance

package test.image;
/**
* @@author Dishan Fernando
*
*/

import java.awt.image.BufferedImage;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CGif {

   String srcFileName = null;
   String dstFileName = null;
   FileOutputStream fileOutputStream = null;

   public CGif(String srcFileName, String dstFileName) throws
FileNotFoundException{

    this.srcFileName = srcFileName;
    this.dstFileName = dstFileName;

    this.fileOutputStream = new FileOutputStream(dstFileName);

   }

   public void saveAsFormattedGif(int width, int height) throws
IOException{

    GifDecoder gifDecoder = new GifDecoder();
    AnimatedGifEncoder animatedGifEncoder = new AnimatedGifEncoder();

    gifDecoder.read(this.srcFileName);

    int frameCount = gifDecoder.getFrameCount();
    int loopCount = gifDecoder.getLoopCount();
    animatedGifEncoder.setRepeat(loopCount);
    animatedGifEncoder.start(fileOutputStream);

    for (int frameNumber = 0; frameNumber < frameCount; frameNumber++) {

       BufferedImage frame = gifDecoder.getFrame(frameNumber);  // frame
i
       int delay = gifDecoder.getDelay(frameNumber);  // display
duration of frame in milliseconds
       animatedGifEncoder.setDelay(delay);   // frame delay per sec
       animatedGifEncoder.addFrame( CUtil.resizeToMaxAndCrop(frame,
width, height) );
    }

    animatedGifEncoder.finish();

    fileOutputStream.flush();
    fileOutputStream.close();
   }

   public static void main(String[] args) {
    try {
       CGif gif = new CGif("E:\\10512Decorations_400x400.gif", "E:\
\128x128.gif");
       gif.saveAsFormattedGif(128, 128);

       System.out.println("done!");

    } catch (Exception e) {
       e.printStackTrace();
    }
   }
}