import java.util.InputMismatchException;
import java.util.Scanner;
import java.awt.Graphics;
import java.applet.Applet;
import java.util.Random;
import java.awt.Color;


public class IterationExercises extends Applet {

	public static void main(String[] args) {

		
		manipulatingAnImage();
		
	}
	
	
	/**
	 * Load an image and negate it's pixels.  Display the negated image to the user.
	 */
	public static void manipulatingAnImage()  {
		
		// Construct an object of the given Picture class
		Picture picture = new Picture(); 
		
		// Use method of the Picture class to load(...) or pick() an image
		picture.pick();
		// Use other methods of the Picture class to negate the image
		int width = picture.getWidth();
		int height = picture.getHeight();
		
		
		for(int pixH = 0; pixH < height; pixH++) {
			for(int pixW = 0; pixW < width; pixW++) {
				Color original = picture.getColorAt(pixW, pixH);
				int red = 255 - original.getRed();
				int green = 255 - original.getGreen();
				int blue = 255 - original.getBlue();
				Color negative = new Color(red, green, blue);
				picture.setColorAt(pixW, pixH, negative);
			}
		}
		
	//while (pixW <= width && pixH <= height) {	
			
	//Color original = new Color(picture.getColorAt(pixW,pixH), 0, 0);
	//int red = 255 - original.getRed(pixW,pixH);
	//int green = 255 - original.getGreen();
	//int blue = 255 - original.getBlue();
	//Color negative = new Color(red, green, blue);

	//} what I tried at the start
		
	}
}