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Proceedings Paper

Color appearance in interior daylight: observations of hue shifts in different compass orientations
Author(s): Maud Harleman
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Paper Abstract

In this paper problems, aims, and preliminary results from an investigation of color appearance in north- and south- facing rooms are presented. This first part of the project includes an experimental study of six colors in two nuances of chromaticness, altogether twelve colors. Several methods for assessment and description have been used. Hue shifts are in focus together with chromaticness and room character. Color appearance was compared between rooms in different compass orientations and found to be clearly different. In the south facing room yellow colors tended towards elementary yellow, while greenish blue tended towards green. All colors increased in chromaticness. Colors in the north- facing room, on the other hand, tended to go in the opposite direction; greenish blue tended towards elementary blue and elementary blue increased its cromaticness most of all. Reddish blue colors showed no distinct tendency. Color variations due to reflexes, patches of light, shade and, shadow were important in assessing the identity color. The identity color is discussed together with the elasticity concept that has been developed to describe the range of different color appearances of an inherent color inside the room.

Paper Details

Date Published: 6 June 2002
PDF: 4 pages
Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); doi: 10.1117/12.464752
Show Author Affiliations
Maud Harleman, Royal Institute of Technology (Sweden)

Published in SPIE Proceedings Vol. 4421:
9th Congress of the International Colour Association
Robert Chung; Allan Rodrigues, Editor(s)

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