function [resultat2] = difference(image1, image2)
%llegir les dues imatges
I1 = imread(image1);
I2 = imread(image2);
%creem una matriu amb les diferencies per a R, G i B de cada pixel, i
%decidir si allò és o no part de l'objecte
DifersR = abs(I1(:,:,1)-I2(:,:,1));
DifersG = abs(I1(:,:,2)-I2(:,:,2));
DifersB = abs(I1(:,:,3)-I2(:,:,3));
Obj = zeros(size(I1,1), size(I1,2));
objecte = zeros(size(I1,1), size(I1,2), 3);
minx = 0;
miny = 0;
maxx = 0;
maxy = 0;
mat1 = int32(zeros(4096,4));
mid1 = 0;
mid2 = 0;
for k = 1:4096
    mat1(k,1) = fix((k-1)/(256))*16;
    mat1(k,2) = mod(fix((k-1)/16),16)*16;
    mat1(k,3) = mod(k-1,16)*16;
end
mat2 = mat1;
for i = 1:size(I1,1)
    for j = 1:size(I1,2)
        %col1 = int32(I1(i,j,:));
        %vaa1 = int32(idivide(col1(1,1,1),16,'floor')*256+idivide(col1(1,1,2),16,'floor')*16+idivide(col1(1,1,3),16,'floor')+1);
        %if(mat1(vaa1,4) == 0)
        %     mid1 = mid1+1;
        %end
        %mat1(vaa1,4) = mat1(vaa1,4)+1;
        if (DifersR(i,j) > 40 || DifersG(i,j) > 40 || DifersB(i,j) > 40)
            Obj(i,j) = 1;
            objecte(i,j,:) = I2(i,j,:);
            if (minx == 0 || i < minx)
                minx = i;
            end
            if (miny == 0 || j < miny)
                miny = j;
            end
            if (maxx == 0 || i > maxx)
                maxx = i;
            end
            if (maxy == 0 || j > maxy)
                maxy = j;
            end
            col2 = int32(I2(i,j,:));
            vaa2 = int32(idivide(col2(1,1,1),16,'floor')*256+idivide(col2(1,1,2),16,'floor')*16+idivide(col2(1,1,3),16,'floor')+1);
            if(mat2(vaa2,4) == 0)
                mid2 = mid2+1;
            end
            mat2(vaa2,4) = mat2(vaa2,4)+1;
        end
    end
end
IFinal = zeros((maxx-minx+1), (maxy-miny+1));
for i = 1:maxx-minx
    for j = 1:maxy-miny
        IFinal(i,j) = Obj(minx+i-1, miny+j-1);
    end
end