基于不同饱和度颜色3种色差公式对比研究_郭娟娟.pdfVIP

87 3 基于不同饱和度颜色的3 种色差公式对比研究 郭娟娟, 赵秀萍 ( , 300222) : 为了比较CIE94, CMC 和CIE2000 对同一色相不同饱和度颜色的均匀性, 选用了高饱和与低饱和各8 个 颜色中 设计了与颜色中 有较大色差的259 种色样, 组织20 名观察者对其进行了视觉评价, 测量了所有 颜色的CIELab 色度值采用多元线性回归修正了各色差公式的l B c 加权系数, 对同一色相不同饱和度颜色 的改善结果进行了分析比较, 验证了修正后色差公式计算的色差值与视觉色差的相关性都有较大提高 : 色差; CIE94; CM C; CIE2000; 加权系数 : T S801. 3; T S807 : A : 1001- 3563( 20 10) 19- 0087- 04 Contrast Research ofThreeColor-differenceFormulas Basedon Colorwith Differ- ent Saturation G UO J uan-j uan, ZH A O X iu-p ing ( T ianjin Uni ersity of Science T echnology, T ianjin 300222, China) Abstract: In order to compare the homogeneity of CIE94, CM C CIE2000 on the color w ith different saturation of the same color quality, respecti e 8 color centers w ith high saturation and low saturat ion w ere selected and used. 259 color samples with relati ely big color difference w ith the color center were designed, twenty obser - ers performed isual e aluation to t hem, and the CIELab chromaticity alues of all colors w ere measured. Mul- t iple linear regression was adopted for modif ying t he l B c w eighted coefficient of each color difference formula, and the impro ement result of color w ith different saturation of the same color quality was analysed and com- pared. It is erified that the color difference alue calculated by the modified color difference formula and the correlation of isual color difference are both greatly impro ed. Key words: color difference; CIE94; CM C; CIE2000; weighted coeff icient , CIE( ) , CIE [ 3- 4] , , , 1 , CIE1931 , CIE , , , 1 17 [ 3] , , CIE 2 , , 10 ,