A mobile terminal is provided including a projector module, a camera, and a controller. The projector module is configured to project an image for display on an external screen. The camera is configured to receive an input image of the image displayed on the external screen. The input image includes a pointer located over the image and a shadow of the pointer. The controller is configured to obtain a distance between the pointer and the shadow of the pointer from the input image, to recognize a touch by the pointer to a touch point in the displayed image according to the obtained distance, to project through the projector module a pointer cursor at the touch point, and to perform an operation corresponding to the recognized touch point.