interfacing a webcam or a cellular phone cam with uc

I want to make image processing project on up or uc i know that webcams and cellular phone cams are not the best choice, but in my country that's the easiest to get, it's difficult to get a game boy camera for example.
All i want is a description of the pins or usb protocols of those cameras where can i find description for those so that i can connect the camera to my uc.
Is this the wrong place to post this question. :cry: I'm new to this forum.