Even if it's technicaly possible, don't go until last level (mainly border clamp).
Even if it's technicaly possible, don't go until last level (mainly
border clamp).

mazhe/ClGaussianPyramid,twitwi/ClGaussianPyramid,mazhe/ClGaussianPyramid,twitwi/ClGaussianPyramid,mazhe/ClGaussianPyramid