1. An information processor comprising: a storage unit configured to store data representing the appearance features of a target device and data of an operation image used for operation of the target device; an acquisition unit configured to acquire an image captured by a camera; a recognition unit configured to recognize an object included in the image based on the feature quantity data stored in the storage unit; and a display control unit configured to display the operation image based on the data of the operation image stored in the storage unit if the object included in the image is recognized by the recognition unit as the target device.