Kuriki I, Uchikawa K
Imaging Science and Engineering Laboratory, Tokyo Institute of Technology, Yokohama, Japan.
J Opt Soc Am A Opt Image Sci Vis. 1998 Sep;15(9):2263-74. doi: 10.1364/josaa.15.002263.
We examined the relationship between the ambient illuminant chromaticity and changes in the sensitivity balance of the visual system, using illuminants of various chromaticities. The sensitivity of observers was measured in a room with a variable-chromaticity illuminant. The observer's state of chromatic adaptation was measured with unique-white settings. Our results showed that the change in visual sensitivity has a nonlinear correlation with the change in illuminant chromaticity; chromatic adaptation was nearly complete for desaturated illuminants, but the degree of chromatic adaptation became worse as the illuminant became more saturated. We defined a new index, relative cone weights, which represents this relationship well. To measure the role of chromatic induction from the immediate-surround area of the matching stimulus, we performed additional experiments by presenting the test inside a colored or black immediate surround. The results showed that the unique-white settings were not disturbed by the change in immediate-surround color. Our results imply that the room illuminant chromaticity was the primary factor in changing the observer's state of chromatic adaptation.
我们使用各种色度的光源，研究了环境光源色度与视觉系统灵敏度平衡变化之间的关系。在一个具有可变色度光源的房间里测量了观察者的灵敏度。用独特白色设置测量了观察者的色适应状态。我们的结果表明，视觉灵敏度的变化与光源色度的变化呈非线性相关；对于不饱和光源，色适应几乎是完全的，但随着光源饱和度的增加，色适应程度变差。我们定义了一个新的指标，相对视锥细胞权重，它能很好地表示这种关系。为了测量来自匹配刺激物紧邻区域的色诱导作用，我们通过在彩色或黑色紧邻区域内呈现测试进行了额外的实验。结果表明，独特白色设置不受紧邻区域颜色变化的干扰。我们的结果意味着房间光源色度是改变观察者色适应状态的主要因素。
