def test_selem_overflow():
strel = cp.ones((17, 17), dtype=cp.uint8)
img = cp.zeros((20, 20), dtype=bool)
img[2:19, 2:19] = True
binary_res = binary.binary_erosion(img, strel)
grey_res = img_as_bool(grey.erosion(img, strel))
testing.assert_array_equal(binary_res, grey_res)
def test_binary_opening():
strel = selem.square(3)
binary_res = binary.binary_opening(bw_img, strel)
grey_res = img_as_bool(grey.opening(bw_img, strel))
testing.assert_array_equal(binary_res, grey_res)
def test_non_square_image():
strel = selem.square(3)
binary_res = binary.binary_erosion(bw_img[:100, :200], strel)
grey_res = img_as_bool(grey.erosion(bw_img[:100, :200], strel))
testing.assert_array_equal(binary_res, grey_res)
