I am trying make the raspberry pi camera work with opencv

Question

I tried making this code work with the raspberry pi cam. how do you make the cv2.VideoCapture(0) recognise the raspberry pi camera as the designated camera

Answer 1

The problem is that you are not coding safely.

If you had check the return of the method, you would know instantly that 0 is not the index of your camera:

import sys

cam = cv2.VideoCapture(0)  
if not cam:
    print("!!! Failed VideoCapture: invalid parameter!")
    sys.exit()

Try numbers > 0.