qt+opencv摄像头程序问题
我现在用的是ubuntu10.10,程序在用到打开摄像头时出现下面的错误，请问究竟是什么问题？
（很奇怪的是，我用fedora11编译同样的代码，出现的错误只有OpenCV Error: Bad argument (Bad image header) in cvCloneImage, file /root/Desktop/OpenCV-2.1.0/src/cxcore/cxarray.cpp, line 3102
terminate called after throwing an instance of 'cv::Exception'
而且我打开这个程序就会报错，但是我开得几次后会有一次没有问题的，摄像头可以打开，而且可以识别人脸。
）
HIGHGUI ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV--------------------编程问答-------------------- 请问您的问题解决了吗？？
Unable to stop the stream.: Bad file descriptor
HIGHGUI ERROR: V4L: Pixel format of incoming image is unsupported by OpenCV
HIGHGUI ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV
Unable to stop the stream.: Bad file descriptor
HIGHGUI ERROR: V4L: Pixel format of incoming image is unsupported by OpenCV
OpenCV Error: Bad argument (Bad image header) in cvCloneImage, file /root/Desktop/OpenCV-2.1.0/src/cxcore/cxarray.cpp, line 3102
terminate called after throwing an instance of 'cv::Exception'
what(): /root/Desktop/OpenCV-2.1.0/src/cxcore/cxarray.cpp:3102: error: (-5) Bad image header in function cvCloneImage
The program has unexpectedly finished.
补充：移动开发 , Qt
