How to divide all values ​​of an array by a number (numpy)?

Question

Python

There is a huge numpy array (image), and I need to divide each pixel value for each channel by 255. Running through the array takes too much time and space. Is there any simple (optimized) way to do this?

Answer 1

import numpy as np
a = np.array([(255, 255, 255), (128, 128, 128), (255, 128, 255), (255, 255, 255)])
print(a / 255)