def METHOD_NAME():
    image = np.array(
                [[0, 0, 0, 0, 1, 0, 0],
                 [0, 0, 1, 1, 1, 1, 1],
                 [1, 1, 1, 0, 0, 0, 0]], dtype=bool)
    expected = np.array(
                [[0, 0, 0, 1, 1, 1, 0],
                 [0, 1, 1, 1, 1, 1, 1],
                 [1, 1, 1, 1, 1, 0, 0]], dtype=bool)
    assert_array_equal(convex_hull_image(image), expected)