问题：imshow图片无法显示

症状：

 

解决方案，将cv2.waitKey(0)与cv.imshow('imgage', img)写到一起

 

 

 

1 import numpy as np 2 import cv2 3  4 img = cv2.imread('F:/team.jpg', 0)   5 cv2.imshow('image', img) 6 # waitKey, represent the Keyboard function 7 k = cv2.waitKey(0) 8 if k == 27:         # wait for ESC key to exit 9     cv2.destroyAllWindows()10 elif k == ord('s'): 　　# wait for 's' key to save and exit11     cv2.imwrite('messigray.png',img)12     cv2.destroyAllWindows()13