A relevance ratio adding unit (107) provides each landmark with a weight value according to the degree of relevancy with a shot still picture, using: the distance between each landmark and the shooting location, received from the landmark distance calculating unit (105); and a distance HL between the shooting location and the photographer's residential address, received from the parameter obtaining unit 106. A landmark identifying unit (108): designates one or several landmarks to be added to the still picture out of the landmarks with a weight value provided by the relevance ratio adding unit 107; and writes the designated landmark in a predetermined position of the picture data of the still pictures.