A method for detecting a viewing angle-dependent characteristic of a document

The invention relates to a method (100) for detecting a viewing angle-dependent characteristic of a document using a camera, the viewing angle-dependent characteristic of viewing angle-dependent representations comprises, a detecting (101) a first image of the document by the video camera in a first spatial location of the document relative to the camera to obtain a first document image, a detecting (103) a second image of the document by the video camera in a second spatial location of the document relative to the camera to obtain a second document image, and detecting (105) an image difference between the first document image and the second document image to detect the viewing angle-dependent characteristic of the document.