function [xCoup,yCoup] = PositionCoup(Difference)
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
    v = size(Difference);
        xCoup = 0;
        yCoup = 0;
        SommeCoef=0;
        for i = 1 : v(1)
            for j = 1 : v(2)
                coef=Difference(i,j);
                xCoup = xCoup + i*coef;
                yCoup = yCoup + j*coef;
                SommeCoef= SommeCoef + coef;
            end
        end
        xCoup = xCoup/SommeCoef;
        yCoup = yCoup/SommeCoef;
       
end