【作者】 张梦童；

【导师】 钱俊； 金杨；

【作者基本信息】 武汉大学 ， 制浆造纸， 2005， 硕士

【摘要】 目前常用的分色技术有传统的四色分色技术、高保真分色技术。它们通常能满足人们对印刷分色技术的要求。但是对于色相偏重型图像,国内通常没有合适的分色技术。这样的图像原稿若用传统的四色分色技术分色,有可能超出印刷色域;若用高保真分色技术,要选择的原色墨数目太多,工艺难以控制且成本较高。 为了解决这一问题,本文研究了分色技术的实质,在分析图像原稿的颜色特性后,以色度学理论及纽介堡方程为基础,提出了一种专色分色模型,并用计算机语言对这一模型做了初步实现。该模型具有以下主要功能:分析原稿特性、获得分色所用的专色墨的光谱数据、利用纽介堡方程实现色空间转换、将颜色查找表写入分色Profile文件,通过Photoshop软件进行分色。更多还原

【Abstract】 There are two main method of color separating technology. The one is traditional four-color separating technology; the other one is Hifi-color separating technology. Generally, they can satisfy people’s requirements. But, for some image which has few hue but high saturation, they aren’t very suitable to do the job. For if used traditional four-color separating technology, some color may not be reproduced, if used Hifi-color separating technology, may cost a lot.In order to solve this problem, this essay work over the substance of color separating technology, analyzing the color characteristic of the image, based on chroma theory and Neugebauer equation and finally put forward a spot color separating model. The author has made a program to make this model to work. This model has the following function: analyzing the color characteristic of the image, get primary color data, doing color space convert, creat ICC Profile, put this Profile into Photoshop and then do spot color separation.更多还原