1. An image processing system for a vehicle, comprising: an imaging means for imaging images in a moving direction of the vehicle; a car body region specifying means for specifying a car body region hidden by a car body part in an image imaged by said imaging means; a car body image region obtaining means for obtaining an image region corresponding to the car body region which is assumed to be seen if the car body part were transparent; an image creating means for creating an image by replacing the car body region in the image imaged by said imaging means with the image region obtained by said car body image region obtaining means; and a display means for displaying the image created by said image creating means.