PRINTED MATTER IDENTIFYING DEVICE AND PRINTED MATTER IDENTIFYING SYSTEM

摘要

A printed matter identifying device that identifies a printed matter printed by a predetermined printing apparatus and having on its surface at least two or more areas that are different in surface property to each other includes: an image reading unit that controls an external light source and camera so that reflected images displayed by the light source respectively on the areas of the surface of the printed matter are captured by the camera to acquire respective image information of the reflected images; an image processing unit that performs image-processing of the image information of the reflected images acquired by the image reading unit; and an image determination unit that uses a differential value between the image information of the reflected images obtained by the image-processing by the image processing unit, to determine whether or not the printed matter is a printed matter printed by the predetermined printing apparatus.