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Sensors 2013, 13(11), 14277-14300; doi:10.3390/s131114277

Offset Printing Plate Quality Sensor on a Low-Cost Processor

2,* , 2
1 Faculty of Graphic Arts, University of Zagreb Getaldiceva 2, 10000 Zagreb, Croatia 2 Department of Computer Architecture and Automation, Complutense University of Madrid, 28040 Madrid, Spain
* Author to whom correspondence should be addressed.
Received: 29 July 2013 / Revised: 17 October 2013 / Accepted: 17 October 2013 / Published: 24 October 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)


The aim of this work is to develop a microprocessor-based sensor that measures the quality of the offset printing plate through the introduction of different image analysis applications. The main features of the presented system are the low cost, the low amount of power consumption, its modularity and easy integration with other industrial modules for printing plates, and its robustness against noise environments. For the sake of clarity, a viability analysis of previous software is presented through different strategies, based on dynamic histogram and Hough transform. This paper provides performance and scalability data compared with existing costly commercial devices. Furthermore, a general overview of quality control possibilities for printing plates is presented and could be useful to a system where such controls are regularly conducted.
Keywords: offset printing; embedded systems; low cost sensor; computer vision; ARM; Raspberry Pi offset printing; embedded systems; low cost sensor; computer vision; ARM; Raspberry Pi
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Poljak, J.; Botella, G.; García, C.; Poljaček, S.M.; Matías, M.P.; Tirado, F. Offset Printing Plate Quality Sensor on a Low-Cost Processor. Sensors 2013, 13, 14277-14300.

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