Создание изображений

import numpy as np
from PIL import Image

red = np.zeros((600, 600))
green = np.zeros((600, 600))
blue = np.zeros((600, 600))
red[150:350, 150:350] = 255
green[200:400, 200:400] = 255
blue[250:450, 250:450] = 255

red_img = Image.fromarray(red).convert("L")
green_img = Image.fromarray(green).convert("L")
blue_img = Image.fromarray((blue)).convert("L")
square_img = Image.merge("RGB", (red_img, green_img, blue_img))
square_img.show()