function f = kaczmarz(p, W, n_boucles)

%     n_pixels = size(W, 2);
%     n_mesures = size(p, 1);
    [n_mesures, n_pixels] = size(W);

    W = W';

    f = zeros(n, 2);

    for k = 1:n_boucles

        for i = 1:n_mesures

            Wi = W(:,i);
    
            f = f + (p(i) - (Wi * f) / norm(Wi) * Wi';

        end

    end

end