【Python勉強中】for文の訓練

gistfile1.txt

%matplotlib inline
import matplotlib.pyplot as plt
import numpy as np
from PIL import Image
tokyo_tower = Image.open("tokyo_tower.png")
tower_color = np.array(tokyo_tower)
hist_r, bins_r = np.histogram(tower_color[:, :, 0].flatten(), bins=256)
hist_g, bins_g = np.histogram(tower_color[:, :, 1].flatten(), bins=256)
hist_b, bins_b = np.histogram(tower_color[:, :, 2].flatten(), bins=256)
plt.figure(figsize=(10, 3))
plt.subplot(1, 2, 1)
plt.imshow(tokyo_tower)
plt.subplot(1,2,2)
plt.plot(hist_r, color="red")
plt.plot(hist_g, color="blue")
plt.plot(hist_b, color="blue")