A mobile terminal device capable of coupling to the Internet and a home network, includes: accompanying information storing means operable to store an image obtained by photographing and accompanying information pertaining to the image and the photographing; search request means operable to request a search server on the Internet to execute a search with the accompanying information as a keyword; search result storing means operable to temporarily store search result obtained from the search server; image composition means operable to create a composite image by combining the search result with the image obtained by the photographing; and transmission means operable to transmit the composite image to a specified output device on the home network.