This apparatus is able to present accurate and natural stereoscopic images by controlling image presentation in real-time in response to changes in the playback environment, such as the angle of incline to the image presentation screen and the visual distance from the audience to the presentation screen. Hence, it does not simply provide a one-sided presentation of stereoscopic images to the audience, but is also able to present optimal stereoscopic images in an interactive manner depending on the movement or operation of the audience.