| This paper mainly discusses the problem of how to establish mathematical model of Flexography.At the beginning of this paper, Flexography is introduced briefly .Then introduces the situation of experiment made for establishing the mathematical model, after that I analyze data of the experiment, get the proper modified value of Yule-Nielson Equation to measure dot area correctly. At last through analyze three kinds of Neugebauer Equations,a kind of thought that we can use some kind of regression method to establish mathematical model of Flexography is formed. According to this thought, I calculate the coefficients of regression equation, then based on analyzing chromatic aberration of the model, I modify that model. At the same time, the model of Flexography builder of software is designed to calculate dot area of CMY using the model with VC++6.0 programming language in windows98 operating system. Another important function of this software is to draw the curves of halftone reproduction and dot gain.The primary attempt and probing are part of our task--A Study on the MathematicalModel of Flexographic Color Reproduction (Special Scientific Research Program Fundedby Shaanxi Provincial Education Commission, Program No. 99JKl97), which lays atheoretical base and accumulates the practice experience for the further study in the future.And the developed software has certain applied values in the prepress system. |