import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;


public class ProcessImage {
	public static int TOLERANCE = 50;
	BufferedImage image0;
	int w, h;
	public void setImage(String path) {
		try {
			image0 = ImageIO.read(new File(path));
		} catch (IOException e) {
		}

		w = image0.getWidth(null);
		h = image0.getHeight(null);	
	} //SetImage
	
	private boolean isInsideTolerance(BufferedImage im, int x, int y, Color background){
		//razdalja barv po standardu CIE76, evklidska razdalja
	    Color pixel=new Color(im.getRGB(x, y));
	    double diff=(pixel.getRed()-background.getRed()) * (pixel.getRed()-background.getRed());
	    diff+=(pixel.getGreen()-background.getGreen())*(pixel.getGreen()-background.getGreen());
	    diff+=(pixel.getBlue()-background.getBlue())*(pixel.getBlue()-background.getBlue());
	    diff = Math.sqrt(diff);
	    if (diff > TOLERANCE) return false;
	    return true;
	}
	
	private boolean isInsideTolerance(BufferedImage im, int x, int y, Color background, int oneColor){
		//0 red, 1 green, 2 blue
	    Color pixel=new Color(im.getRGB(x, y));
	    double diff;
	    if(oneColor == 0){
	    	if(Math.abs(pixel.getRed() - 255) < TOLERANCE && pixel.getGreen() < 3 * TOLERANCE && pixel.getBlue() < 3 * TOLERANCE)
	    		return true;
	    }
	    if(oneColor == 1){
	    	if(Math.abs(pixel.getGreen() - 255) < TOLERANCE && pixel.getRed() < 3 * TOLERANCE && pixel.getBlue() < 3 * TOLERANCE)
	    		return true;
	    }
	    if(oneColor == 2){
	    	if(Math.abs(pixel.getBlue() - 255) < TOLERANCE && pixel.getGreen() < 3 * TOLERANCE && pixel.getRed() < 3 * TOLERANCE)
	    		return true;
	    }
	    //System.out.println("DIFF: " + diff);
	    return false;
	} 
	
	public String findSide(Color c){
		Result rez = findSide(image0, c);
		return ("" + (rez.l + rez.r));
	}
	
	public String findSide(Color c, int oneColor){
		Result rez = findSide(image0, c, oneColor);
		System.out.println(rez);
		return ("" + (rez.l + rez.r));//TO POPRAVIMO
	}
	
	public Result findBites(Color c, int oneColor){
		return(findBites(image0, c, oneColor));
	}

	private Result findBites(BufferedImage im, Color c, int oneColor){
		int lCounter = 0, rCounter = 0, mCounter = 0;
		for(int i = 0; i < im.getHeight(); i++){
			for(int j = 0; j < im.getWidth(); j++){
				if(isInsideTolerance(im, j, i, c, oneColor)){
					if(j < im.getWidth() / 3){
						lCounter++;
					}
					else if((j > (im.getWidth() / 3)) && (j < (2 * im.getWidth() / 3))){
						mCounter++;
					}
					else{
						rCounter++;
					}
				}
			}
		}
		System.out.println("FIND: "+rCounter + " "+mCounter+" "+lCounter);
		return(new Result(rCounter, lCounter, mCounter));
	}
	
	
	private Result findSide(BufferedImage im, Color c){
		int lCounter = 0, rCounter = 0;
		for(int i = 0; i < im.getHeight(); i++){
			for(int j = 0; j < im.getWidth(); j++){
				if(isInsideTolerance(im, j, i, c)){
					if(j < im.getWidth() / 2)
						lCounter++;
					else
						rCounter++;
				}
			}
		}
		System.out.println("FIND: "+lCounter + " "+rCounter+" "+c + " " + im.getHeight());
		return(new Result(lCounter, rCounter, lCounter - rCounter));
	}
	
	private Result findSide(BufferedImage im, Color c, int oneColor){
		int lCounter = 0, rCounter = 0;
		for(int i = 0; i < im.getHeight(); i++){
			for(int j = 0; j < im.getWidth(); j++){
				if(isInsideTolerance(im, j, i, c, oneColor)){
					if(j < im.getWidth() / 2)
						lCounter++;
					else
						rCounter++;
				}
			}
		}
		System.out.println("FIND: "+lCounter + " "+rCounter+" "+c + " " + im.getHeight());
		return(new Result(lCounter, rCounter, lCounter - rCounter));
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		if(args.length == 1){
		ProcessImage pp = new ProcessImage();
		pp.setImage(args[0]);
		System.out.println("Stran: " + pp.findSide(Color.RED));
		}
		else{
			System.out.println("java ProcessImage path");
		}

	}
}

class Result{
	int l;
	int r;
	int diff;
	Result(int ll, int rr, int difff){
		l = ll;
		r = rr;
		diff = difff;
	}
	
	public String toString(){
		return("" + l + " " + r + " " + diff);
	}
}