subplot-mosaic-1.py

import matplotlib.pyplot as plt

image = plt.imread("gardens.jpg")

# Create a figure with two subplots
fig, (ax_left, ax_right) = plt.subplots(nrows=1, ncols=2)

ax_left.imshow(image)
ax_left.axis("off")

# Extract the red channel from the image
image_red = image.copy()
image_red[:, :, 1:] = 0

ax_right.imshow(image_red)
ax_right.axis("off")

plt.show()