具有打底油墨的半色调印刷品的Clapper-Yule模型

Clapper-Yule Spectral Color Prediction Model of Ground Color Ink Halftone Prints

通过经典的Clapper-Yule模型的应用,对已有的点对点的半色调印刷品进行扩展,在忽略油墨渗透的条件下,建立起能具有打底油墨的半色调印刷品的呈色规律的理论模型。在假定油墨是非散射介质以及油墨的折射率与纸张的折射率近似相等的近似下,利用光在油墨与纸张中散射迁移路径长短不同的分程理论,建立了具有打底油墨的半色调图像的分程Clapper-Yule光谱反射率模型。

Clasical Clapper-Yule was applied to establish theoretical model of color rule of halftone presswork with ground color ink, through point to point expansion of halftone presswork and under the condition of neglecting ink penetration. On the approximation that the ink is non-scattering and its refractive index is nearly equal to papers, a Clapper-Yule spectral reflectance model for ground color ink halftone was put forward by making use of the theory of the light propagation in paper with long and short distance theory.