1. A stereoscopic image control apparatus comprising: a first object image portion detection device for finding a desired object image portion from a left-eye image and from a right-eye image constituting a stereoscopic image; a parallax shifting device for shifting said left-eye image and said right-eye image in such a manner that visual disparity between the object image portion of said left-eye image and the object image portion of said right-eye image, which have been found in said first object image portion detection device, is removed; a display area decision device for deciding a display area, which contains the object image portion the visual disparity of which has been removed by said parallax shifting device, in said left-eye image and in said right-eye image that have been shifted by said parallax shifting device; and a display control device for controlling a display unit so as to enlarge and display the image within the display area, which has been decided by said display area decision device, in said left-eye image and in said right-eye image that have been shifted by said parallax shifting device.