image binarization in java

package EnhancementOpr;
import java.lang.reflect.Array;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.awt.geom.GeneralPath;
import com.sun.image.codec.jpeg.*;
import java.io.*;
import javax.imageio.*;
import java.awt.image.BufferedImage;
 
/**
 *
 * @author sami
 */
public class Binirization  {
     
    public static int THRESHABOVE = 255;
    public static int THRESHBELOW = 0;
    private BufferedImage bufi;
    private Raster data;
    private  DataBuffer datab;
    private   int width, height;
    private int threshold;
    private int datav [];
    private int datanew[];
    private BufferedImage bufnew;
    /** Creates a new instance of Binirization */
    public Binirization(BufferedImage newimg) {
        bufi=newimg;
    }
     
    public static int getColor(int b, int g, int r) {
        return (int)Math.pow(2,16)*r + 256*g + b;
    }
    public void setThreshold(int threshold){
        this.threshold=threshold;
    }
     
    public int getWidth(){
        return data.getWidth();
    }
     
    public int getHight(){
        return data.getHeight();
    }
     
    public void DoBinirization(){
  
         
        width=bufi.getWidth();
        height=bufi.getHeight();
        BufferedImage bi = new BufferedImage(width,  height,bufi.getType());
        for(int i=0;i<width;i++) {
            for(int j=0;j<height;j++) {
                int rgb =bufi.getRGB(i,j);
                 
                int r = (rgb >> 16) & 0xff;
                int g = (rgb >> <img src="./images/smilies/icon_cool.gif" alt="8)" title="Cool"> & 0xff;
                int b = (rgb >> 0) & 0xff;
                 
                // Calculate the brightness
             if(r>threshold||g>threshold||b>threshold)
             {
                    r=255;
                    g=255;
                    b=255;
             }
             else
             {
            r=0;
            g=0;
            b=0;
             }
  
                 
                // Return the result
                rgb= (rgb & 0xff000000) | (r << 16) | (g << <img src="./images/smilies/icon_cool.gif" alt="8)" title="Cool"> | (b << 0);
                bi.setRGB(i, j,rgb);
            }
      
        bufnew=bi;
             
        }
    }
         
        public BufferedImage getImg(){
             
            return bufnew;
        }
         
         
         
    }