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Volume: 18 | Article ID: art00055_1
Use of Signature Analysis to Discriminate Digital Printing Technologies
  DOI :  10.2352/ISSN.2169-4451.2002.18.1.art00055_1  Published OnlineJanuary 2002

We describe the application of a machine-vision based (ImageXpert) print quality analyzer to derive and identify unique print quality “signatures”. Test patterns generated by seven different state-of-the-art digital (ink jet and dry/liquid xerography) and impact (computer-to-plate offset lithography) printing technologies were quantitatively analyzed in terms of a statistically meaningful number of lines, half-tone dots and text features. In every case examined it is possible to resolve a unique print quality signature which enables differentiation of one printer technology/supplier from another. By this means we demonstrate the potential for definitive print analysis in the context of digital printing forensic document examination

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John Oliver, Joyce Chen, "Use of Signature Analysis to Discriminate Digital Printing Technologiesin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP18),  2002,  pp 218 - 222,

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