Driving support system and method of producing overhead view image

A driving support system which includes: at least two cameras (10 1 to take images of areas around a vehicle, whose ranges of field of view partially overlap with each other; a control unit (30) performing a predetermined coordinate transformation on the images taken by the cameras (10 1 ,...,10 n ) and joining the transformed images together to produce an overhead view image; and a display unit (40) to display the overhead view image. The control unit (30) changes the position of the joint of the transformed images in the overhead view image.