Abstract: An augmented reality (AR) providing apparatus includes a first data acquiring unit to acquire first data of a target object, a second data acquiring unit to acquire second data, and an image processor to obtain a representative image based on the first data and to modify the representative image based on the second data. A method for providing AR includes acquiring first data for a target object, acquiring second data from a source associated with the target object or a user of an AR providing apparatus, obtaining a representative image related to the first data, and modifying the representative image based on the second data.

Abstract: A first terminal shares a digital marker edited in a digital marker editing mode and an object corresponding to the edited digital marker with a second terminal using a wireless communication technology. If a digital marker is displayed on an image display unit of the first terminal, the second terminal photographs the digital marker using a camera, and synthesizes an object corresponding to the photographed digital marker with a real-time video image obtained through the camera to display a merged image as augmented reality. Then, the second terminal receives input information for changing the digital marker from a user, and transmits the received input information to the first terminal. The first terminal changes a digital marker using the input information received from the second terminal. The second terminal photographs the changed digital marker, and displays an object corresponding to the changed digital marker.