Paper Titles
A Gamut Compression Algorithm Based on the Image Spatial Characteristics
p.57
Color Measurement and Analysis Based on the Konica Minolta Bizhub Pro C6501 Digital Press
p.62
Evaluation of Device Color Gamut Description Algorithms
p.68
Digital Color Appearance Evaluation System
p.72
A Spectral Improved Neugebauer Equation Model
p.76
Research on Color Reproduction Characteristics of Mobile Terminals
p.80
Ink Spectrum Data Feature Extraction Research
p.87
Research on Visual Performance under Different Lighting Environments of LED Light Sources
p.92
Optimal Experiment Designs of Color File Based on the Tetrahedron Interpolation Algorithm
p.97

A Spectral Improved Neugebauer Equation Model

Article Preview

Abstract:

Neugebauer equations are the basic formula in color printing. However, this is a theoretical model. If the printing conditions and complexity of overprinting are not considered, the result obtained by Neugebauer equations will not be very accurate. The Neugebauer equations need to be corrected in practice. There are some methods such as Yule-Nielson correction, Cellular correction, dot gain correction and so on. In order to improve the precision and analyze the cause of errors of Neugebauer equations, a model using a spectral dot gain correction is given in the paper. The dot gain is generally a function of wavelength. Dot gain in each wavelength of a primary is treated in calculating the Demichel equations, and the corrected dot area is used as weighting factors in two color overprint and three color overprint process. The experiment and calculation show that this method can improve the precision of the equations a lot.

You might also be interested in these eBooks
Advanced Printing and Packaging Materials and Technologies View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 731)

Pages:

76-79

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.731.76

Citation:

Cite this paper

Online since:

January 2015

Authors:

Ze Hui Liu, Hao Xue Liu, Xiao Hui He

Keywords:

Dot Area, Neugebauer Equation, Spectral Correction, Spectral Reflectance

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] LIU Hao-xue, Yuan Yu-xia. A Method of Correcting Neugebauer Functions'Error by means of Dot Gain Value[J]. Journal of Beijing Institute o f Printing. Vol. 7 No. 4 Dec. (1999).

Google Scholar

[2] Zhang Zhen-jie, Liu Zhen. Errors Analysis of Three Color separation Algorithms Based on Subarea Neugebauer Equation[J]. Packging engineering. Vol. 33 No. 15 2012-08.

Google Scholar

[3] HU Cheng-fa. Theory of Printing color and chromaticity[M]. Bejing: Graphic Communication Press, (1993).

Google Scholar

[4] Zhang Lin, Yang Xu. Research on Precision of Neugebauer Equation[J]. Packging engineering. Vol. 28 No. 11 2007. 11.

Google Scholar

[5] LIU Hao-xue. Color Science and Technology[M]. Beijing: Chinese light industry press, 2008-08.

Google Scholar

[6] LIU Hao-xue. Spectral Characteristics of Color Printing[J]. Journal of Beijing Institute of Printing. Vol. 10 No. 3 2002-09.

Google Scholar

[7] LIU Wu-hui, HU Geng-sheng, WANG Qi. Printing Color Science[M]. Beijing: Chemical Industry Press, 2008-07.

Google Scholar