How to capture an image with OpenCv?

[Leon]

I want to capture an image from my webcamera using opencv. I read this http://www.cs.iit.edu/~agam/cs512/lect-n…000000000000000 but CvCapture* capture = cvCaptureFromCAM(0);
gives me this error..

@HIGHGUI ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV
Unable to stop the stream.: Device or resource busy
Unable to stop the stream.: Bad file descriptor
HIGHGUI ERROR: V4L: Pixel format of incoming image is unsupported by OpenCV@

To Download the project of OpenCV --> http://dl.dropbox.com/u/11379868/QtOpenCV.zip
What i want to do is when you press the capture button to take a picture and to have the option to save it..
On Ubuntu 10.10

[dialingo]

This looks like an OpenCv only question, though your app is written using Qt. You may want to ask again in OpenCv forum?

[Leon]

Do you have any link for the opencv forum? I found this : "OpenCv Users":http://opencv-users.1802565.n2.nabble.com/

[vishwajeet]

have a look at this http://stackoverflow.com/questions/851679/saving-an-image-in-opencv