1. An imaging system for a vehicle comprising: an imaging array sensor comprising a plurality of photo-sensing pixels, wherein said imaging array sensor is positioned at the vehicle and has a field of view exterior of the vehicle, and wherein said imaging array sensor is operable to capture an image of a scene exterior of the vehicle, said captured image comprising an image data set representative of the exterior scene; a control for processing said captured image, said control algorithmically processing said image data set to a reduced image data set of said image data set, said control processing said reduced image data set to extract information from said reduced image data set; wherein said control is operable to determine that said imaging array sensor is not aligned within a desired tolerance when said imaging array sensor is positioned at the vehicle; and wherein said control, responsive to a determination of a misalignment of said imaging array sensor when said imaging array sensor is positioned at the vehicle, is operable to adjust at least one of said image data set and said image processing to at least partially compensate for the determined misalignment of said imaging array sensor.