import matplotlib.pyplot as plt
from PIL import Image
import cv2
img = cv2.imread("bkdData//100012.jpg")
image = Image.fromarray(np.uint8(img))
# image = Image.open("bkdData//100012.jpg")
images = []
titles = []
for i in range(4):
plt.subplot(2, 2, i + 1), plt.imshow(images[i], 'gray') # 显示图像,3行3列
plt.title(titles[i])
plt.xticks([]), plt.yticks([])
plt.show()