1. An image processing apparatus comprising: an interface to receive panorama image data; and a display image generation section configured to (i) determine whether or not the panorama image data to be a display target has a 360° viewing angle, (ii) generate display image data by performing a display projection process in case a determination result indicates that the panorama image data has the 360° viewing angle, and (iii) generate other display image data by performing another process, which is not the display projection process, in case the determination result indicates that the panorama image data has a viewing angle other than 360°.