how to connect with usb cameras using qt for ImageProcesssing.

[Megasms]

Hi Everybody.,

I am new to qt i am using qt 4.4.1 in my project i want to connect with usb camera,

please anybody tell me how to connect with usb cameras and how to get the images from that camera.


Many Thanks

[jacek]

You need an additional library for that. Like OpenCV.

http://opencvlibrary.sourceforge.net/CameraCapture

[Megasms]

Thank you very much for your valuable reply.

[lvi]

If you're developing on a Linux platform, you can read from /dev/videoN, using the Video4Linux(2) API (http://v4l2spec.bytesex.org/spec/). It's pretty straightforward.
On Windows, I have no clue ;)