function Y_debruite = debruitage(Y_sb, Y_b)

    mu = mean(Y_b, 2);
    sigma = std(Y_b, 1, 2);
    alpha = 2;

    masque = abs(Y_sb - mu) > abs(alpha * sigma);
    masque = double(masque);
    masque = imgaussfilt(masque, 5);
    masque(masque == 0) = 0.01;

    % imagesc(masque);
    % axis xy;
    % colorbar;

    Y_debruite = Y_sb .* masque;

end