How to do it...

The steps are as follows:

1. Load an image to have something to work with and get its size:

orig = cv2.imread('../data/Lena.png')
orig_size = orig.shape[0:2]

2. Now let's display our image. To do so, we need to call the cv2.imshow and cv2.waitKey functions:

cv2.imshow("Original image", orig)
cv2.waitKey(2000)