An image acquiring unit acquires a two-dimensional image from a digital camera and a stereoscopic image from a stereo image storage, and sends those images to a pixel replacing unit. The pixel replacing unit replaces pixels, among the two-dimensional image, corresponding to an object such as a pattern depicted in the stereoscopic image, by pixels of the object. An image providing unit transmits a thus generated completed image to the user. Part of the two-dimensional image is displayed stereoscopically by a stereoscopic image.