三原色印刷复制过程中数学模型的建立及软件的编制

ESTABLISHMENT OF MATHEMATICAL MODEL ANDWRITING OF SOFTWARE IN THE PROCEDURE OFTRICHROMATIC PRINTING AND REPRODUCTION

三原色印刷复制过程是对原稿的色彩信息进行分解、转换、传递和再现的过程。设计制作的三原色印刷测试版，采集了大量的色彩数据信息，应用现代工程数学的基本理论，借助电子计算机，建立了信息转换过程的数学模型（密度值模型和色度值模型）及传递过程的传递函数，从而解决了根据原稿的三色密度值或三色刺激值求解三原色网点面积值的问题。最后将具体的求解过程编制成了计算机软件。

Trichromatic printing and reproduction is a procedure in which the colour informa- tion of manuscript' is decomposed. transformed. transmited and reproduced. A great num- ber of colour data were collected on basis of a test plates for trichromatic printing. By means of electronic computer. the mathematical models (model of density value and mo- del of spectrophotometric value) of information transformation course and the transfer fu- nctions for transfer course were established according to the basic theory of modern eng- ineering mathematics. thereby the problems of calculating trichromatic dot area from tri- chromatic density values or tristimulus values of manuscripts have been solved. Finally. the concrete computer software for calculation course was writed.