An apparatus comprises: a camera module for obtaining a first image, the camera module having at least one port, each of the at least one ports being associated with an attachment position for receiving a second camera module for obtaining a second image; a processor for detecting a position of a second camera module and providing, to an image processing controller, information relating to at least one of the position of the second camera module and the first image obtained by the camera module; and a memory for storing the information relating to at least one of the position of the second camera module and the first image obtained by the camera module.