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Variable Data Printing File Analyzing and Screening Technology Base on PPML

Author: WangPeng
Tutor: ZhangLiBin；ZuoFang
School: Zhejiang University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Variable digital printing PPML Raster Image Processing Digital halftone Error diffusion
CLC: TS805.4
Type: Master's thesis
Year: 2012
Downloads: 16
Quote: 0
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Abstract


Variable digital printing is a personalized, print-on-demand technology , it plays an important role in many areas of the bill printing, invoice printing , commercial printing , card printing . Therefore , actively involved in the field of research , contribute to the formation of digital printing technology and equipment with independent intellectual property rights , and has a very good role in promoting the development of China's printing industry . At home and abroad based on PPML variable digital printing expensive hardware and software costs , lack of expansion capability , compatibility is not good , easy to lose image detail different gray level image after RIP processing to produce the image distortion solve these problems , this paper, based on PPML variable digital printing the file structure of the principle of the analysis of the corresponding file parsing algorithm and digital halftone algorithm is designed and developed based on PPML variable digital the printed file parsing screening system , variable digital printing file parsing and can achieve better halftone results . The main work and results of this paper are as follows : study variable digital printing technology principle , based on the shortcomings of PPML variable digital printing technology at home and abroad , and proposed improvement ideas and research methods ; 2. PPML file source data constitute a document (such as PDF , JPEG , TIFF) file parsing algorithm , variable digital printing file data parsing . 3 on the basis of the realization of the principle of the analysis digital halftoning techniques , on the scanning path and the quantization threshold value of the digital halftone analysis and optimization, proposed based on the Z-shaped automatic threshold error dispersion method . Documents submitted parsing algorithm and digital screening algorithm to write a program to complete the design and development of digital printing file parsing screening system based on PPML variable ; PPML file parsing results given different numbers plus the corresponding experimental the network algorithm halftone effect , and objective evaluation of the pros and cons of the of various halftone algorithm in image reproduction quality . Finally, the full text summary and further study proposes outlook .

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CLC: > Industrial Technology > Light industry,handicrafts > Printing Industry > General issues > Printing technology > Digital printing
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