Cannot Open Camera - OpenCV MacOS Python3

Question

Specs Detail

• Macbook Pro 2020 13"
• MacOS Version : Bigsur 11.3.1
• OpenCV Version : 4.5.1
• Python Version : 3.9.4
• Camera : Default Facetime Camera
• Running on iTerm 2 Build 3.4.6

Problems

Camera isn't opened when launching this code :

import numpy as np
import cv2

cap = cv2.VideoCapture(0)

while cap.isOpened():
    # Capture frame-by-frame
    ret, frame = cap.read()

    # Our operations on the frame come here
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
   
    # Display the resulting frame
    cv2.imshow('frame',frame)
    cv2.imshow('gray',gray)
    if cv2.waitKey(20) & 0xFF == ord('q'):
        break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()

Screenshot

camera not opened

camera permission has been given

Additional Info :

I have two camera installed (one of them is epoccam, a camera drive for using smartphone as camera)

Answer 1

Solved by uninstalling EpocCam