这是展示一个从你的情况有些不同,我不知道它的数据。我怀疑你的数组'O'中的所有值都是零,因此,情节作为黑色窗格出现。
import numpy as np
import matplotlib.pyplot as plt
fig=plt.figure(figsize=(8, 4))
# make up some data for demo purposes
raw = np.random.randint(10, size=(6,6))
# apply some logic operatioin to the data
O = (raw >= 5) * 1 # get either 0 or 1 in the array
I = np.random.randint(10, size=(6,6)) # get 0-9 in the array
# plot each image ...
# ... side by side
fig.add_subplot(1, 2, 1) # subplot one
plt.imshow(I, cmap=plt.cm.gray)
fig.add_subplot(1, 2, 2) # subplot two
# my data is OK to use gray colormap (0:black, 1:white)
plt.imshow(O, cmap=plt.cm.gray) # use appropriate colormap here
plt.show()
产生的图像: