Clapper-Yule Color Prediction Model of Recto-verso Halftone Images
半色调双面图像的色彩预测Clapper-Yule模型

In order to provide a halftone print with an accurate spectral reflectance model the ink is non-scattering and its refractive index is nearly equal to that of papers.On the assumption,a color prediction model of the spectral reflectance for recto-verso halftone images was presented,which have some color but different screening period.Using the classical Clapper-Yule model which take into account multiple internal reflections of light the analysis model of net structure of multiple reflectances in the recto-verso halftone images was proposed.A new Clapper-Yule color prediction model in which the verso intrinsic reflectance of paper substrate and the reflectance of the verso interfaces of air and paper was also present.