/**
 *
 * @author RyanR
 */
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;

public class JImg extends BufferedImage {
   public JImg(BufferedImage img) {
        super(img.getColorModel(), img.copyData(null),
        img.isAlphaPremultiplied(), null);
    }
   public JImg(int width, int height) {
        super(width, height, TYPE_INT_RGB);
    }
   public void setPixel(int x, int y, Color c) {
        int pixel = c.getRGB();
        setRGB(x,y,pixel);
    }
   public Color getPixel(int x,int y) {
        int pixel = getRGB(x,y);
        return new Color(pixel);
    }
    public void dark() {
        int height = getHeight();
        int width = getWidth();
        for (int y=0; y<height; y++) {
            for(int x=0; x<width; x++) {
                setPixel(x,y,getPixel(x,y).darker());
            }
        }
    }
    public void bright() {
        int height = getHeight();
        int width = getWidth();
        for (int y=0; y<height; y++) {
            for(int x=0; x<width; x++) {
                setPixel(x,y,getPixel(x,y).brighter());
            }
        }
    }
    public void monokrom() {
        int height = getHeight();
        int width = getWidth();
        for (int y=0; y<height; y++) {
            for(int x=0; x<width; x++) {
                Color pixel = getPixel(x,y);
                int brightness = (pixel.getRed() + pixel.getBlue() +
                pixel.getGreen());
                if(brightness <= 85) {
                    setPixel(x,y,Color.BLACK);
                }
                else if(brightness <= 170) {
                    setPixel(x,y,Color.GRAY);
                }
                else {
                    setPixel(x,y,Color.WHITE);
                }
            }
        }
    }
}