全光谱色差型权重因子计算机配色方法研究  

A Study of Computer Colour Matching Method on Spectrophotometric Colour Differenuce Weight Factor

作　　者：王喜昌[1,2] 周丰昆[1,2] 王乐新 禹秉熙[1,2] 

机构地区：[1]中国科学院长春光学精密机械研究所应用光学国家重点实验室 [2]黑龙江省八一农垦大学基础部

出　　处：《照明工程学报》1999年第1期1-5,共5页China Illuminating Engineering Journal

摘　　要：本文在计算机配色全光谱匹配方法基础上，建立和使用了色差型权重因子。这种权重因子的表达式为ωｊ＝｛［ｘ（λｊ）］２＋［ｙ（λｊ）］２＋［ｚ（λｊ）］２｝［Ｅ（λｊ）］２。这种权重因子的确立，可以根据假设ｊ（ΔＸｊ）２＋（ΔＹｊ）２＋（ΔＺｊ）２＝ｍｉｎ而获得，也就是说，假设在可见光波段，每个波长处的光谱偏差引起的颜色三刺激值偏差的平方总和达到最小。结果表明，使用这种色差型权重因子进行计算机配色所产生的色差比已知的Ｓｃｈｍｉｄ和Ｓｔｒｏｃｋａｓｈ设计的ωｊ＝［（ｘ（λｊ）＋ｙ（λｊ）＋ｚ（λｊ））Ｅ（λｊ）］１／４和ωｊ＝［（ｘ（λｊ）＋ｙ（λｊ）＋ｚ（λｊ））Ｅ（λｊ）］１／４［Ｒｓｔｄ（λｊ）］－２／３两种权重因子配色方法所产生的色差小，有较好的应用。On the basis of spectrophotometic colour matching the colour difference weight factor is proposed and used in the thesis.The weight factor can be expressed as ω j={(λ j)] 2+(λ j)] 2+(λ j)] 2} 2, and obtained according to the assumption of j(ΔX j) 2+(ΔY j) 2+(ΔZ j) 2= min .i.e. ,in the range of visible spectrum,it is assumed that the square sum of tristimulus value deviation produced by spectrum deviation at each wavelength is minimal.Experiments show the colour difference produced by the weight factor is smaller than that produced by both two factors ω j=[((λ j)+(λ j)+(λ j))E(λ j)] 1/4 and ω j=(λ j)+(λ j)+(λ j))E(λ j)] 1/4 [R std (λ j)] -2/3 which were deisgned by schmid and strockash.

关 键 词：色差型权重因子 全光谱匹配 计算机 配色 

分 类 号：TS193.13[轻工技术与工程—纺织化学与染整工程]