1. A vision system for a vehicle, said vision system comprising: a camera disposed in a vehicle equipped with said vision system, said camera having a field of view that encompasses a front seat of the equipped vehicle so as to capture images of an occupant of the equipped vehicle; said camera capturing image data; an image processor; said image processor provided with image data captured by said camera; said image processor image processing image data captured by said camera; said image processor, responsive at least in part to image processing of image data captured by said camera, recognizing movement; wherein said movement comprises a hand gesture made by the occupant of the equipped vehicle; and wherein said image processor comprises a system-on-a-chip image processor.