基于颜色并列与叠加模型的专色油墨光谱反射率预测算法

Prediction Algorithm of Spectral Reflectance of Spot Color Ink Based on Color Parallel and Superposition Model

专色油墨的光谱预测一直以来都是色彩研究领域中的难题,分别采用颜色并列与叠加模型处理Clap-per-Yule模型,简化专色油墨光谱反射率预测模型,通过实验验证了该简化方式具有一定的实际应用价值,并且对于一般性印刷品的专色颜色预测,完全可以达到要求,最主要的是该简化极大地减小了计算难度。此外,还比较了颜色并列模型与叠加模型简化专色油墨光谱预测模型的精确性,结果表明,颜色叠加模型在简化专色油墨光谱预测模型时精确性较高。

Spectral prediction of spot color ink has always been a difficult problem in the field of color research. Color parallel and superposition models was applied to deal with the Clapper-Yule model and to simplify the pre- diction model of spectral reflectance of spot color ink. Experimental verification showed that the simplified method has a certain practical application value, which can meet the requirement of spot color prediction of gen- eral presswork. The simplification can largely reduce the computational difficulty. The accuracy of color parallel model was compared with the superposition model. The result showed that the color superposition model has higher accuracy in simplifying the spectral prediction model of spot color ink.