import numpy as np
import cv2

image = np.mat(np.zeros((200, 200)))
imageByteArray = bytearray(image)
print(imageByteArray)
#imageBGR = np.array(imageByteArray).reshape(200, 200) 报错？显示cannot reshape array of size 320000 into shape (200,200)
imageBGR = np.array(imageByteArray).reshape(400, 800)
cv2.imshow("cool", imageBGR)
cv2.waitKey(0)