code: def test_center_border():
      from mahotas import wavelet_center
  
      np.random.seed(12)
      for border in (16, 24):
          f = np.random.rand(51, 100)
          fc = wavelet_center(f, border=border)
          assert np.all(fc[:border] == 0)
          assert np.all(fc[-border:] == 0)
          assert np.all(fc.T[:border] == 0)
          assert np.all(fc.T[-border:] == 0)
  
imports: import numpy
  import mahotas
  import mahotas.convolve
  import mahotas
  from mahotas.convolve import convolve1d, gaussian_filter
  import mahotas._filters
  from mahotas.tests.utils import luispedro_jpg
  import pytest
label_desc: Use image node_id 19 for calling a global function with example usage: test_center_border() without return types