A learning input image acquisition section acquires a plurality of input images individually depicting a state imaged at a predetermined angle of view in a predetermined relative imaging direction. A learning wide angle-of-view image acquisition section acquires a wide angle-of-view image having an angle of view including all the angles of view of the plurality of input images. A learning section performs learning of a wide angle-of-view image generation section based on a learning wide angle-of-view image and an output that is generated when the plurality of input images are inputted to the wide angle-of-view image generation section, which generates and outputs an image having an angle of view including all the angles of view of a plurality of images in response to the input of the plurality of images.