OpenCV wont' capture from MacBook Pro iSight

Question

Since a couple of days I can\'t open my iSight camera from inside an opencv application any more. cap = cv2.VideoCapture(0) returns, and cap.isOpened()

Answer 1

This is how I got the camera working for your code (on OSX 10.6):

import cv2

cv2.namedWindow("preview")
vc = cv2.VideoCapture(0)

rval, frame = vc.read()

while True:

  if frame is not None:   
     cv2.imshow("preview", frame)
  rval, frame = vc.read()

  if cv2.waitKey(1) & 0xFF == ord('q'):
     break