check if image read python code example

Example 1: check if image is empty opencv python

if (type(img) is np.ndarray): 
     #do stuff with image

Example 2: python opencv check image read

import cv2 
import os.path

while not os.path.isfile("myImage.jpg"):
    #ignore if no such file is present.
    pass

img = cv2.imread("myImage.jpg", 0)

cv2.imwrite("result.jpg", img)