A projection method for a motor vehicle, for projecting at least one image onto a projection surface by means of a light module suitable for projecting a light beam, wherein the projection method includes the steps of detecting an observation position of an observer in a light module reference frame, calculating the observation position of the observer in an image reference frame, and projecting the image onto the projection surface according to the observation position of the observer in the image reference frame, the image being integrated into the light beam of the light module.