光学学报, 2008, 28 (8): 1628, 网络出版: 2009-08-31
基于物体表面色的人眼阈值水平微小色差评价
Evaluation of Very Small Colour Difference at Human Eye's Threshold Level Based on Object Surface Colours
视觉光学 微小色差 视觉评价 色差公式 人眼阈值 物体表面色 vision optics very small colour difference visual evaluation colour-difference formula human eye's threshold object surface colour
摘要
基于物体表面色样本的视觉评价,测试常用色差公式在人眼阈值水平的微小色差预测性能。由一组21名观察者采用感知法对100个颜色样本对进行视觉实验,获得视觉色差的评价数据,通过观察者精度分析并与BFD和Witt的视觉数据进行对比,验证了本实验数据的有效性。利用实验数据对CIELAB、CMC、BFD、CIE94、LCD和CIEDE2000等六个常用色差公式在人眼阈值水平的微小色差预测性能进行了详细的测试和比较,结果表明国际照明委员会(CIE)推荐的CIEDE2000表现最好,而CIELAB性能最差。
Abstract
The performances of modern colour-difference formulae were investigated to evaluate very small colour difference at human eye’s threshold level based on object surface colours. A panel of 21 observers performed the visual assessment to 100 sample pairs using perceptibility method. The validity of the visual results was verified via the observer variation estimation and the comparison with the BFD's and Witt's published data. The detailed analysis indicates that CIEDE2000 recommended by CIE performs best and CIELAB the worst among the six modern colour-difference formulae, namely CIELAB, CMC, BFD, CIE94, LCD and CIEDE2000, for predicting very small colour difference at the level of human eye's threshold.
王寒, 徐海松, Guihua Cui, M. Ronnier Luo. 基于物体表面色的人眼阈值水平微小色差评价[J]. 光学学报, 2008, 28(8): 1628. Wang Han, Xu Haisong, Cui Guihua, M. Ronnier Luo. Evaluation of Very Small Colour Difference at Human Eye's Threshold Level Based on Object Surface Colours[J]. Acta Optica Sinica, 2008, 28(8): 1628.
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