1. A monitoring system for monitoring an area surrounding a vehicle comprising: an imaging system of the vehicle, said imaging system comprising at least one of an object detection system, a lane departure warning system, a lane change assist system, a side object detection system, a forward facing imaging system, a rearward facing imaging system, a back up aid and a panoramic view imaging system, said imaging system comprising an imaging sensor operable to capture an image of a scene occurring exteriorly of the vehicle; a control responsive to said imaging sensor and selectably operable to communicate image data of said captured image to a remote receiving device remote from the vehicle; and wherein said control processes said captured image, said captured image comprising an image data set representative of the exterior scene, said control including a microprocessor comprising an edge detection algorithm, said control applying said edge detection algorithm to a reduced image data set of said image data set, said reduced image data set being representative of a target zone of said captured image, said control being operable to process said reduced image data set more than other image data, which are representative of areas of said captured image outside of said target zone, to detect edges of objects present exteriorly of the vehicle and within said target zone.