Fuzzy ART-BP Algorithm Based on Intelligent Ink Presetting Technology
It is a comprehensive problem to accurately set the ink key opening of every ink zone for a specific press according to the color coverage of the graphical content which will be printed on the sheet. In this paper, a new-type neural network is proposed to
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Fuzzy ART-BP Algorithm Based on Intelligent Ink Presetting Technology Minjie Wang, Min Wang and Tao Zan
Abstract It is a comprehensive problem to accurately set the ink key opening of every ink zone for a specific press according to the color coverage of the graphical content which will be printed on the sheet. In this paper, a new-type neural network is proposed to preset the key opening of the ink zones, which combines the fuzzy ART neural network and BP neural network, and is with the capability of half-incremental learning and good generalization. The actual qualified printed sheets are used as training samples to train fuzzy ART-BP network, so that the nonlinear mapping relationship among graphic digital information, printing conditions, and ink key control parameters is established. The experimental results indicate that the fuzzy ART-BP network algorithm could effectively shorten adjusting time of the ink key setting and improve printing efficiency. Keywords Ink presetting learning
Fuzzy ART BP neural network Half incremental
93.1 Introduction With rapid development and wide application of the digital printing workflow, the ink presetting technology as an important part of digital printing workflow has been developed vigorously. Therefore, the traditional printing industry is facing more and more pressure of market competition and technology today. The digital ink presetting technology is applied widely in printing industry.
M. Wang M. Wang (&) T. Zan School of Mechatronical Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China e-mail: [email protected]
Z. Zhong (ed.), Proceedings of the International Conference on Information Engineering and Applications (IEA) 2012, Lecture Notes in Electrical Engineering 218, DOI: 10.1007/978-1-4471-4847-0_93, Ó Springer-Verlag London 2013
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The presetting of ink is happened between the prepress and printing, according to the information of layout of a printed page. The prepress and printing process is connected by ink information, which realizes the datamation and standardization of printing industry like the digital management of printing process [1]. The ink presetting technology directly reads the data of the graphic analytic RIP before the printing, every ink key control parameter is preset by neural network algorithm of ink preset technology, and then the out ink amount of every ink zone is controlled, such that the effect of printed sheet is best [2].
93.2 Ink Presetting Principle The PS/PDF layout information is formed by the digitized original file, and then the 1-bit Tiff file is formed after the imposing, color separation, and screening by RIP. That file is divided based on the structure of press, the amount of ink key, and the color plate, and then the monochrome dot area percentage of every region is calculated lastly. Besides the monochrome dot area percentage may be directly obtained by job definition format (JDF) work subpoena [3, 4]. According to the nonlinear mapping relationshi
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