Image Custom Filter In Java

package imageviewer;
 
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ConvolveOp;
import java.awt.image.Kernel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
 
import javax.swing.JTextField;
 
  
public class CustomFilter extends JFrame{
     
    /** Creates a new instance of CustomFilter */
    public CustomFilter(BufferedImage buffImage) {
        setTitle("Custom Filter");
        setSize(400,200);
        setLocation(250,250);
        Orginal=buffImage;
        Container cp=getContentPane();
        cp.setLayout(new FlowLayout());
        myPanel.setLayout(new GridLayout(5,5));
         
        for(int i=0;i<5;i++)
            for(int j=0;j<5;j++) {
            myfilds[i][j]=new JTextField("0.08",5);
            myPanel.add(myfilds[i][j]);
            }
        ok.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                 
                int count=0;
                float foa;
                for(int i=0;i<5;i++)
                    for(int j=0;j<5;j++) {
                     
                     
                    customfil[count]    =Float.parseFloat(myfilds[i][j].getText());
                     
                    count++;
                    }
                 
                int w =Orginal.getWidth();
                int h = Orginal.getHeight();
                biop = new ConvolveOp(new Kernel(dim[0][0],dim[0][1],customfil));
                BufferedImage bi = new BufferedImage(w,h,Orginal.TYPE_INT_RGB);
                biop.filter(Orginal,bi);
                new ShowFrame(bi,"Custom Filter");
            }
        });
        Cancel.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });
        cp.add(myPanel);
        cp.add(ok);
        cp.add(Cancel);
         
    }
    private JTextField [][] myfilds=new JTextField[5][5];
    private JPanel myPanel=new JPanel();
    private JButton ok=new JButton("OK");
    private JButton Cancel=new JButton("Cancel");
    private float[]  customfil  = new float[25];
    private BufferedImageOp biop;
    private BufferedImage Orginal;
    private  int dim[][] = {{5,5}};
}