Image capture

[TheDuncan]

I need to capture an image from a streaming USB camera. After I get the image, I need to be able to analyze individual pixels. Can someone point me in the right direction? Any sample code would be greatly appreciated. Thanks in advance.

[vishwajeet.dusane]

Use openCV with Qt, with openCV you can get the image from USB camera using few lines of code. And to analyse the image there are many API and classes in Qt