1ª parte

import java.util.Random;

import aguiaj.iscte.*;


public class Parte1 {

    //Questao 1
    public static ColorImage copy(ColorImage img){
        ColorImage newImage = new ColorImage (img.getWidth(), img.getHeight());
        for(int i = 0; i < img.getWidth(); i++){
            for(int j = 0; j < img.getHeight(); j++){
                newImage.setColor(i, j, img.getColor(i,j));
            }
        }
        return newImage;
    }

    public static ColorImage copyWithMargin(ColorImage img, int margin){
        ColorImage newImage = new ColorImage (img.getWidth(), img.getHeight());
        newImage = copy(img);
        Color white = new Color (255,255,255);
        for(int i = 0; i < newImage.getWidth(); i++){
            for(int j= 0; j < margin; j++){
                newImage.setColor(i, j, white);
                newImage.setColor(i, newImage.getHeight()-margin+j, white);
            }
        }
        for(int i = 0; i < margin; i++){
            for(int j= 0; j < newImage.getHeight(); j++){
                newImage.setColor(i, j, white);
                newImage.setColor(newImage.getWidth()-margin+i,j, white);
            }
        }
        return newImage;
    }

    //Questao 2
    public static BinaryImage matrix (boolean [][] mat){
        BinaryImage bin = new BinaryImage(mat.length, mat[0].length);
        for(int i = 0; i < mat.length; i++){
            for(int j = 0; j < mat[0].length; j++){
                if(mat[i][j] == true)
                    bin.setBlack(i, j);
                else
                    bin.setWhite(i, j);
            }

        }
        return bin;
    }

    //Cria uma matriz random para testar com o aguiaj
    public static boolean [][] ma(int x){
        boolean [][] mat = new boolean [x][x];
        Random r = new Random();
        for(int i = 0; i < x; i++){
            for(int j=0; j < x; j++){
                mat[i][j] = r.nextBoolean();
            }
        }
        return mat;
    }

    //Questão 3
    public static Color newColor(Color color, int peso){
        int max = 255;
        int r = 0,g = 0,b = 0;
        if(peso < 127){
                r = Math.abs(color.getR()-peso);
                g = Math.abs(color.getG()-peso);
                b = Math.abs(color.getB()-peso);
        }
        else{
                r = color.getR()+peso;
                g = color.getG()+peso;
                b = color.getB()+peso;
                if(r>max)
                    r -= max;
                if(g>max)
                    g -= max;
                if(b>max)
                    b -= max;
        }
        return new Color(r,g,b);
    }

}