import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;
 
/**
 * This class demonstrates how to load an Image from an external file
 */
public class ChangeImageApp extends Component {
           
    BufferedImage img;
 
    public void paint(Graphics g) {
        g.drawImage(img, 0, 0, null);
    }
 
    public ChangeImageApp() {
       try {
           img = ImageIO.read(new File("strawberry.jpg"));
       } catch (IOException e) {
       }
		 System.out.println("Width:  " + img.getWidth() + " \nHeight:  " + img.getHeight());
		 for(int i = 0; i < 100; i++){
			 for(int j = 0; j < 100; j++){
				 img.setRGB(100+i, 100+j, 0xFF0000);
			 }
		 }
		 int width = img.getWidth();
		 int height = img.getHeight();
		 for(int i = 0; i < width; i++){
			 for(int j = 0; j < height; j++){
				 int color = img.getRGB(i, j);
				 int red = color & 0xFF0000 / 256*256;
				 int green = color & 0x00ff00 / 256;
				 int blue = color & 0x0000ff;
				 if(red > 128 && green < 128 && blue < 128)
					 color = 0xFF00FF;


				 img.setRGB(i, j, color);
			 }
		 }
		 
 
    }
 
    public Dimension getPreferredSize() {
        if (img == null) {
             return new Dimension(100,100);
        } else {
           return new Dimension(img.getWidth(null), img.getHeight(null));
       }
    }
 
    public static void main(String[] args) {
 
        JFrame f = new JFrame("Change Image Sample");
             
        f.addWindowListener(new WindowAdapter(){
                public void windowClosing(WindowEvent e) {
                    System.exit(0);
                }
            });
 
        f.add(new ChangeImageApp());
        f.pack();
        f.setVisible(true);
    }
}