pythonopencvwebcamwindows-7-x64

How to make USB camera work with OpenCV?

I copied code from https://stackoverflow.com/a/34588758/210342 and used with default (built-in) camera, it worked. Then I attached USB camera, tested it with VLC and changed the code to open camera 1:

cam = cv2.VideoCapture(1)

I check whether the camera is open cam.isOpened() -- it is -- but the camera is not enabled (its hardware indicator, LED, is off) and indeed all I see on the screen is black frame.

Is there some extra special code to add in order to enable USB camera?

Solution

  • Are you sure the usb camera is camera 1, i've done this before and had to use cv2.VideoCapture(0)