1. A method comprising: projecting, using a projection device equipped on a vehicle, an image onto ground nearby the vehicle; detecting a position or a point of view of a user; rotating the projected image or at least one object within the projected image based on the detected position or point of view of the user, wherein the projected image or the at least one object within the projected image is rotated such that the projected image or the at least one object within the projected image is oriented to face the user; identifying a door of the vehicle which has been opened by the user; selecting a projection device among a plurality of projection devices equipped on the vehicle to project the image based on the identified door; and projecting the image using the selected projection device.