What is the difference between cv2.videocapture(1) and cv2.videocapture(0)?

Question

import cv2

cap= cv2.VideoCapture(0)

while True:
    ret,frame= cap.read()
    cv2.imshow('Our live sketch',frame)

    if cv2.waitKey(1)==13:
        break

cap.release()

When I use cv2.VideoCapture(1), the programs shows error but the program works properly if I use cv2.VideoCapture(0)

score 2 · Answer 1 · answered Nov 07 '21 at 07:03

2

That's the index of the camera it is used to select different cameras if you have more than one attached. By default 0 is your main one.

answered Nov 07 '21 at 07:03

Pedro Maia

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So if I had two cameras, my index would have been cv2.VideoCapture(1)? – Python_newbie. Nov 07 '21 at 07:17
If you want to use your second camera yes. – Pedro Maia Nov 07 '21 at 07:18

What is the difference between cv2.videocapture(1) and cv2.videocapture(0)?

1 Answers1