python open ppm image code example

Example 1: python download image

import urllib.request

image_url = 'https://bit.ly/2XuVzB4' #the image on the web
save_name = 'my_image.jpg' #local name to be saved
urllib.request.urlretrieve(image_url, save_name)

Example 2: show image opencv python

import cv2
img = cv2.imread('/path_to_image/opencv-logo.png')
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()

# to use it in a loop
k = cv2.waitKey(0)
if k == 27:         # wait for ESC key to exit
    cv2.destroyAllWindows()
elif k == ord('s'): # wait for 's' key to save and exit
    cv2.imwrite('messigray.png',img)
    cv2.destroyAllWindows()