title: opencv python camera permission issue on Windows 10
body: <p>While running a simple opencv video capture script, i am getting <code>False</code> as the result. I suspect it is due to some security setting in Windows 10 which is not allowing camera access. I checked Privacy > Camera settings, but there was no option to allow a script to access the camera. I can see that the camera is not turned on when running the following opencv based test script.</p>
  
  <pre><code>import cv2
  
  cap = cv2.VideoCapture(0)
  
  while(True):
      ret, frame = cap.read()
      print(ret)
  </code></pre>