基于光谱视觉响应拟合的计算机配色算法

对光谱拟合配色算法进行了讨论,并运用单常数库贝尔卡-芒克理论,导出了基于光谱视觉响应拟合的配色处方基本矩阵方程,以及配色处方修正量公式,提出了相应的计算机配色算法,建立了配色处方的修正迭代步骤。数值实验表明光谱视觉响应拟合法均衡了不同照明体下的色差,且同色异谱程度低于其他光谱拟合法。

Algorithm for Computer Matching Color Based on Spectral Visual Response Fitting

Algorithms for matching color based on spectrophotometric fitting are discussed.By using of single-constant Kubelka-Munk theory,the basic equations used in the recipe formulation as well as the recipe correction are derived based on the concept of spectral visual response fitting in matrix form.An algorithm for the least squares match to the spectral visual response of a standard is developed.The iterative procedure for the correction of recipe is established in this algorithm.Results of a few numerical experiments show that the algorithm for computer matching color based on spectral visual fitting balances the color differences under sev- eral different illuminants,and produces lower rnetamerism than other algorithms based on spectrophotometric fitting do.