Size of recognized visual space of illumination influenced by color scheme of interior

Hideki Yamaguchi; Hiroyuki Shinoda; Mitsuo Ikeda

doi:10.1117/12.464664

6 June 2002 Size of recognized visual space of illumination influenced by color scheme of interior

Hideki Yamaguchi, Hiroyuki Shinoda, Mitsuo Ikeda

Proceedings Volume 4421, 9th Congress of the International Colour Association; (2002) https://doi.org/10.1117/12.464664
Event: 9th Congress of the International Color Association, 2001, Rochester, NY, United States

Abstract

Understanding of illumination performs an important role in perceiving the color and brightness of object's surface. Especially, we can evaluate observer's perception about intensity of illumination by the concept of the brightness size of recognized visual space of illumination, RVSI. Our previous work showed that the RVSI size is determined by the luminance of a highest-lightness object and it's normally proportional to the illuminance. In the present experiment, we measured the border luminance between object color and unnatural object color in two rooms differently furnished, to examine the effect of color scheme of interior on the brightness size. In spite of the same illuminance, the border luminance was a half of that in normal environment when the room was furnished with only objects whose Munsell Value were 5 or less. The measurement of the border luminance was not affected by local illuminance or immediate background. It indicates the RVSI is unique for a room: only one measurement is enough. It can be a great advantage when the measurement is applied for real and complex environments. The RVSI size may be a useful and easy measure for evaluation of the adaptation level of the visual system in practical and complex environments.

Citation Download Citation

Hideki Yamaguchi, Hiroyuki Shinoda, and Mitsuo Ikeda "Size of recognized visual space of illumination influenced by color scheme of interior", Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); https://doi.org/10.1117/12.464664

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