``` kernel = np.array([[1, 4, 6, 4, 1], [4, 6, 24, 6, 4], [6, 24, 36, 24, 36], ... ``` should be ``` kernel = np.array([[1, 4, 6, 4, 1], [4, 6, 24, 6, 4], [6, 24, 36, 24, 6], ... ```