Method for obtaining a transformed image from an image, such that when said transformed image is arranged on a surface that forms a horizontal plane and is seen by an observer it appears to be a virtual representation of the image which is located in a perpendicular position in relation to the surface onto which the deformed image is arranged, characterised in that the method comprising: - getting the height to length ratio of the image; - getting the width the transformed image should have; - getting the height the transformed image should have; - establishing coordinate axes (X, Y) at the point on the surface onto which the viewing point is orthogonally projected, with said coordinate axes on the same horizontal plane corresponding to the surface on which the transformed image is arranged; - obtaining a first angle (α) of the transformed image from at least two of the following parameters: the distance between the point of the surface onto which the viewing point is projected and the upper end of the transformed image furthest in relation to that viewing point, the distance corresponding to the coordinate of the upper end of the transformed image furthest in relation to said viewing point, on a first axis of the coordinate axes; and the distance corresponding to the coordinate of the upper end of the transformed image which is furthest from the transformed image in relation to said viewing point, on a second axis of the coordinate axes; - obtaining the lateral length of the transformed image from the first angle (α) of the transformed image and width that the transformed image should have; - obtaining the length of the transformed image from the height to length ratio of the image and the height of the virtual representation of the image; - obtaining a second angle (λ) of the transformed image from at least two of the following parameters: distance between the point on the surface onto which the viewing point is projected and the lower end of the transformed image closest in relation to said viewing point; the distance corresponding to the coordinate of the lower end of the transformed image closest in relation to said viewing point, on the first axis of the coordinate axes; and the distance corresponding to the coordinate of the lower end of the transformed image closest in relation to said viewing point, on the second axis of the coordinate axes; and generating said transformed image from said image based on said parameters (α, L3, L4, λ). - getting the height to length ratio of the image; - getting the width the transformed image should have; - getting the height the transformed image should have; - establishing coordinate axes (X, Y) at the point on the surface onto which the viewing point is orthogonally projected, with said coordinate axes on the same horizontal plane corresponding to the surface on which the transformed image is arranged; - obtaining a first angle (α) of the transformed image from at least two of the following parameters: the distance between the point of the surface onto which the viewing point is projected and the upper end of the transformed image furthest in relation to that viewing point, the distance corresponding to the coordinate of the upper end of the transformed image furthest in relation to said viewing point, on a first axis of the coordinate axes; and the distance corresponding to the coordinate of the upper end of the transformed image which is furthest from the transformed image in relation to said viewing point, on a second axis of the coordinate axes; - obtaining the lateral length of the transformed image from the first angle (α) of the transformed image and width that the transformed image should have; - obtaining the length of the transformed image from the height to length ratio of the image and the height of the virtual representation of the image; - obtaining a second angle (λ) of the transformed image from at least two of the following parameters: distance between the point on the surface onto which the viewing point is projected and the lower end of the transformed image closest in relation to said viewing point; the distance corresponding to the coordinate of the lower end of the transformed image closest in relation to said viewing point, on the first axis of the coordinate axes; and the distance corresponding to the coordinate of the lower end of the transformed image closest in relation to said viewing point, on the second axis of the coordinate axes;