1. A method comprising: receiving image data corresponding to an image captured by a camera, the image including at least one object to be displayed at a device coupled to the camera; determining a viewpoint of a person relative to a display of the device coupled to the camera, wherein determining the viewpoint comprises determining a face area of the person based on a determined skin color area of the person and tracking a face location of the person based on the face area; and moving the at least one object displayed at the display in response to the determined viewpoint of the person.