Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, 240-8501, Japan.
Faculty of Environment and Information Sciences, Yokohama National University, Yokohama, 240-8501, Japan.
Sci Rep. 2020 Oct 27;10(1):18350. doi: 10.1038/s41598-020-75510-x.
Surface color results from a reflected light bounced off a material, such as a paper. By contrast, self-luminous color results directly from an emitting light, such as a Liquid Crystal (LC) display. These are completely different mechanisms, and thus, surface color and self-luminous color cannot be matched even though both have identical tristimulus values. In fact, previous research has reported that metameric color matching fails among diverse media. However, the reason for this failure remains unclear. In the present study, we created isomeric color-matching pairs between self-luminous and surface colors by modulating the spectral distribution of the light for surface colors. Then, we experimentally verified whether such color matching can be performed. The results show that isomeric color matching between self-luminous and surface colors can be performed for all participants. However, metameric color matching fails for most participants, indicating that differences in the spectral distributions rather than the different color-generating mechanisms themselves are the reason for the color matching failure between different devices. We experimentally demonstrated that there is no essential problem in cross-media color matching by generating isomeric pairs. Our results can be considered to be of great significance not only for color science, but also for the color industry.
表面颜色是由物体反射的光产生的，例如纸张。相比之下，自发光颜色则直接由发光产生，例如液晶 (LC) 显示器。这些是完全不同的机制，因此，即使具有相同的三刺激值，表面颜色和自发光颜色也无法匹配。事实上，之前的研究报告表明，不同媒体之间的同色异谱配色匹配失败。然而，失败的原因尚不清楚。在本研究中，我们通过调制表面颜色的光谱分布来创建自发光和表面颜色之间的等色匹配对。然后，我们通过实验验证了是否可以进行这种颜色匹配。结果表明，所有参与者都可以进行自发光和表面颜色之间的等色匹配。然而，对于大多数参与者来说，同色异谱配色匹配失败，这表明是光谱分布的差异而不是不同的颜色生成机制本身导致了不同设备之间的颜色匹配失败。通过生成等色对，我们实验证明了跨媒体颜色匹配没有本质问题。我们的研究结果不仅对颜色科学，而且对颜色产业都具有重要意义。
