Re: [Linux-uvc-devel] Test of the driver on GNU/Debian amd64

[<Oli...@id...>]

Hello,

> Olivier: Would it be possible to post a simple OpenCV application to
> grab 1 frame from the camera? Would be greatly appreciated and help me
> in my endeavor.

Just download the CVS version of OpenCV from:

    http://sourceforge.net/cvs/?group_id=22870

Build and install. Then, try one of the sample in samples/c/ or
samples/python/. To see how to use the camera, you can look at
samples/c/camshiftdemo.c or samples/python/cam-histo.py (my preference
goes to the python version :-) ).

In general, I'm testing uvc with cam-histo.py. (don't have try the C
version at with uvc, but it should works without problems). If you just
want to grab 1 frame from the cam, this simple python code should works:

    from opencv import highgui
    device_nb = 0
    capture = highgui.cvCaptureFromCAM (device_nb)
    frame = highgui.cvQueryFrame (capture)
    highgui.cvSaveImage ('my-frame.jpg', frame)

Hope this help.

        Olivier
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