1. A characteristic image display apparatus comprising: a control unit comprising a central processing unit and a control program executing instructions to implement: a band-like image creation unit configured to create a single-color small image according to characteristics of an object in a captured image and to incorporate the single-color small image created according to the characteristics of the object in the captured image into a plurality of small images created on the basis of the captured image, so as to create a band-like image in which a plurality of small images are arranged.