Apparatus and method for checking value documents and system for processing value documents

An apparatus for checking value documents, and more particularly banknotes, having at least one image-capturing device, which is designed to capture at least one image of each of a plurality of value documents, said images each being composed of a plurality of pixels,

• wherein an evaluation device, which is designed to determine, in the captured images of different value documents, one or more positions of pixels at which a plurality of the captured images of the different value documents deviate from a predefined reference image.

A method for checking value documents, and more particularly banknotes, in which at least one image of each of a plurality of value documents is captured, said images each being composed of a plurality of pixels,

• wherein, in the captured images of different value documents, one or more positions of pixels at which a plurality of the captured images of the different value documents deviate from a predefined reference image are determined.