| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Specular highlights on typical objects reflect illumination colors directly, and thus is a potential cue for color constancy. In this study, we aim to elucidate the relationship between specular highlights and color perception using psychophysical experiments. First, we found no evidence that temporal color changes of specular highlights are recognized as illumination color changes. However, secondly, we showed that color constancy is stronger in scenes containing many glossy objects with specular highlights than in scenes containing only matte objects. Also, this superiority of glossy objects over matte objects disappeared in noise images whose low-level image statistics were the same as glossy objects. These results suggest that there is a mechanism in the human brain that adjusts color appearance according to specular highlight color so that the influences of illumination colors are removed from color appearance.
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