method for identification of an individual benefit with a printed image on a printing substrate by faulty quality with several benefits

摘要

The invention relates to a method for identifying a single panel comprising a printed image of defective quality on printed material comprising several panels. According to said method, an image of at least part of the printed material is photographically captured and data that correlates with the captured image is analysed to determine whether a defect that reduces the quality of the printed image exists on the printed material. Information concerning the location of the panel containing the defect that reduces the quality of the printed image is ascertained in relation to the printed material and the location of the panel containing said defect is determined by comparing the data that correlates with the captured image to an electronically generated data record comprising information concerning the arrangement, form or size of the individual panel that is located on the printed material. In a preferred embodiment, an image processing system, performs the comparison with a data record for the form of the individual panel on the printed material, said data record originating from a punching die for separating the panels on the printed material.