利用近同色异谱样本评价同色异谱指数的性能
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Evaluation of the Performance of Metamerism Indices with the Near Metamers
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    摘要:

    为了验证不同的同色异谱指数的评估 性能,基于Kubelka-Munk配色理论并通过印刷适性仪打样得到的4组近同色异谱对,根据心理物理学实验方法中的比较法,组织40名色觉正常的观察者,对近同色异谱样本进行色差大小排序评估实验,通过相关系数来分析同色异谱指数客观评价和观察者主观评价之间的一致性。研究结果表明:特殊同色异谱指数评价模型,在D50和TL84光源下,主观评价之间的相关系数均高于0.7;基于长中短锥体波长敏感加权的(lms-MI)一般同色异谱指数评价模型的相关系数均高于0.55,由此可见特殊同色异谱指数和lms-MI模型的同色异谱程度评价性能较优。因此,在光谱配色和照明指示贴研制过程中,当在特定的D50和TL84光源下,可以选择特殊同色异谱指数作为同色异谱程度评价指数;当不依赖光源时,lms-MI模型可作为评价依据以筛选最优光谱。

    Abstract:

    To verify the evaluation performance of different metamerism indices, based on the Kubelka-Munk color matching theory, four sets of near metamerism pairs were obtained through the printing suitability instrument proofing. Based on the comparison method in the psychophysical experimental method, 40 observers with normal color vision were organized to carry out the color difference ranking evaluation experiment. Correlation coefficients were used to analyze the consistency between objective evaluation of metamerism indices and subjective evaluation of observers. The research results showed that the correlation coefficients between the special metamerism index and the subjective evaluation under D50 and TL84 light sources were both higher than 0.7, and the correlation coefficients of the general metamerism index model based on the long, medium and short cone wavelength sensitivity weighting algorithm were higher than 0.55, indicating that the evaluation performance of the metamerism degree of the special metamerism and the lms-MI model was better. Therefore, in the development of spectral color matching and lighting indicator, special metamerism index could be selected as the metamerism degree evaluation index under illuminant D50 and TL84, while the lms-MI model could be used to select the best spectrum when the light source was not dependent.

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于俊彦,陈丹青.利用近同色异谱样本评价同色异谱指数的性能[J].包装学报,2020,12(4):30-38.

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  • 收稿日期:2020-06-07
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  • 在线发布日期: 2020-10-15
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