Anamorphosis is the deformation of an image by means of an optical procedure. The image’s distortion disappears when looking at it through a curved mirror or from the correct perspective. This method was used by Renaissance painters and artists: the first known anamorphosis appears in a drawing by Leonardo da Vinci. In the 20th century it was perfected by the astronomer and inventor Henri Chrétien in 1926 by the name of Anamorphoscope and resulted in the CinemaScope widescreen technique. The system captures and projects the images by means of anamorphic lens installed in the camera and in the projector to increase the length of the screen. There are currently computer programmes that carry out anamorphosis.