01-Opening-Image-Files-OpenCV.py

import cv2

img = cv2.imread('DATA/00-puppy.jpg')

while True:

    cv2.imshow('Puppy',img)

    # EXPLANATION FOR THIS LINE OF CODE:
    # https://stackoverflow.com/questions/35372700/whats-0xff-for-in-cv2-waitkey1/39201163
    
    # IF we've waited at least 1 ms AND we've pressed the Esc
    if cv2.waitKey(1) & 0xFF == 27:
        break

cv2.destroyAllWindows()