Clapper-yule Film Optical Color Prediction Model

One of the cores of all current mainstream printing color detection color managementsystem and the system of effective control of color printing color system managementsoftware, and form printing color management software is the core of the relevantmathematical model, namely the color prediction model. An accurate prediction of colormodel for color correction, device description, predicting the relationship between input andoutput and clear presentation is very important.The classic color prediction model mostly photometry as its theoretical foundation,Express spectral reflectance by brightness and radiation flux. However, most of these modelsignore the transmission process of absorption, scattering and interference effect in the paper,ink composition "film" layer. This thesis is based on the electromagnetic theory of light, theink and paper as the medium equivalent absorption film, the interaction between light and inkand paper considered the electromagnetic wave energy flow reflection, absorption andscattering interference integrated transmission process, analysis of the propagation of light inthe ink film, paper thin film from the angle of electromagnetic wave,According to thecharacteristics of light streaming in halftone images, using both short-range and long-rangecommunication theory into the correction coefficient, a film model to predict theClapper-Yule spectral color halftone printing. Considering the natural lighting, to reflectvisible light fluorescence enhancement effect ofpaper base, at the same time, the fluorescenceeffect factor, established the Clapper-Yule fluorescence basis expansion model.Through a comparison of numerical calculation with experimental data analysis, Provesthe rationality and the feasibility of the new model. Research shows that, the predictionaccuracyof new model proposed is better than the original Clapper-Yule model.