def piramide_laplaciana(l_gau, level):
l_lap = []
size = len(l_gau)
l_gau.reverse()
# l_gau[1].show()
# mine_img.expand(l_gau[0],4).show()
# mine_img.expand(l_gau[1],4).show()
# l_lap.append(mine_img.diff_img(l_gau[1], mine_img.expand(l_gau[0],4)))
for i in range(2, size+1):
l_lap.append(mine_img.diff_img(l_gau[i-1], mine_img.expand(l_gau[i - 2],4)))
return l_lap
