无法在Ubuntu上使用OpenCV和Python捕获视频

Question

I'm trying to write a simple python script to capture an image from a webcam using OpenCV. This is running on Ubuntu 11.10 32-bit.

when I run lsusb in the terminal i get:

Bus 002 Device 002: ID 045e:00f7 Microsoft Corp. LifeCam VX-1000

Which leads me to believe that the driver for the camera is installed

In a python shell I type: capture=cv.CaptureFromCAM(0) # also tried -1, 1, 2, 3

but capture is always null.

I also tried: capture = cv.CreateCameraCapture(0)

But i get the same results.

Would appreciate any help

Cheers,

Answer 1

Merely probing the driver does not validate that the camera will work.

Here is a ubuntu support page on testing your camera with vlc

Basically you should try something like :

$ vlc v4l2:///dev/video0

Answer 2

I don't think this camera is supported by OpenCV.

OpenCV has a compatibility list , check if yours is there.