To provide an image processing system capable of increasing a sense of affinity for a robot at a low cost, an image processing system has an image generating device for generating computer graphics in a figure corresponding to a positional relationship between an observer, who is observing a figure of an actual object and the actual object, and the actual object; a nimbus generating device for generating a nimbus image around a periphery of the computer graphics; a combined image generating device for generating a combined image combining the computer graphics and the nimbus image; and an image display processing device for displaying the combined image on an display which is seen by the observer so that the combined image is superimposed on the actual object.