A setting method executed by a computer includes acquiring display data to be associated with a reference object detected from a first input image data and to be displayed when the reference object is detected from another input image, generating, by the computer, attitude information indicating an arrangement attitude of the display data relative to the reference object, based on rotation information indicating a magnitude of rotation that is applied to the computer by a user, and storing, in a storage device, setting information including the attitude information, the display data, and identification information of the reference object.