code: def test_hog_odd_cell_size():
      img = np.zeros((3, 3))
      img[2, 2] = 1
  
      correct_output = np.zeros((9,))
      correct_output[0] = 0.5
      correct_output[4] = 0.5
  
      output = feature.hog(
          img,
          pixels_per_cell=(3, 3),
          cells_per_block=(1, 1),
          block_norm="L1",
      )
  
      assert_almost_equal(output, correct_output, decimal=1)
  
file_path: scikit-image/skimage/feature/tests/test_hog.py
imports: import numpy
  import pytest
  from numpy.testing import assert_almost_equal
  from skimage import color, data, draw, feature, img_as_float
  from skimage._shared import filters
  from skimage._shared.testing import fetch
  from skimage._shared.utils import _supported_float_type
label_desc: Use image node_id 5 for calling a global function with example usage: test_hog_odd_cell_size() without return types