How do I display the contours of an image using OpenCV Python?

Question

I followed this tutorial from official documentation. I run their code:

import numpy as np
import cv2

im = cv2.imread(\'test.jpg\')
imgray = cv2.cvtColor(im         


        

Answer 1

Add these 2 lines at the end:

cv2.imshow("title", im)
cv2.waitKey()

Also, be aware that you have img instead of im in your last line.