Here is a code that displays images in jtable cell.

import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;

public class DisplayImageInTableCell extends JFrame
{
    public DisplayImageInTableCell()
    {
        ImageIcon icon1 = new ImageIcon("c:/cut.png");
        ImageIcon icon2 = new ImageIcon("c:/copy.png");
        ImageIcon icon3 = new ImageIcon("c:/paste.jpg");

        String[] columnNames = {"Picture", "Description"};
        Object[][] data =
        {
            {icon1, "Icon of Cut"},
            {icon2, "Icon of Copy"},
            {icon3, "Icon of Paste"},
        };

        DefaultTableModel model = new DefaultTableModel(data, columnNames);
        JTable table = new JTable( model )
        {

            public Class getColumnClass(int column)
            {
                return getValueAt(0, column).getClass();
            }
        };
        table.setPreferredScrollableViewportSize(table.getPreferredSize());

        JScrollPane scrollPane = new JScrollPane( table );
        getContentPane().add( scrollPane );
    }

    public static void main(String[] args)
    {
        DisplayImageInTableCell frame = new DisplayImageInTableCell();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.setSize(300,200);
        frame.setVisible(true);
    }

}