from skimage import data
from skimage.color import rgb2hsv
import matplotlib.pyplot as plt

plt.figure(figsize=(15,15))

coffee=data.coffee()

plt.subplot(1,2,1)
plt.imshow(coffee)

hsv_coffee=rgb2hsv(coffee)

plt.subplot(1,2,2)
hsv_coffee_colorbar=plt.imshow(hsv_coffee)
plt.colorbar(hsv_coffee_colorbar,fraction=0.046,pad=0.04)

plt.show()