3.3.11.1. Creating an image

How to create an image with basic NumPy commands : np.zeros, slicing…

This examples show how to create a simple checkerboard.

import numpy as np
import matplotlib.pyplot as plt

check = np.zeros((8, 8))
check[::2, 1::2] = 1
check[1::2, ::2] = 1
plt.matshow(check, cmap="gray")
plt.show()