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Proceedings Paper

Investigation of the Helmholtz-Kohlrausch effect using wide-gamut display
Author(s): Semin Oh; Youngshin Kwak
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Paper Abstract

The aim of this study is to investigate whether the Helmholtz-Kohlrausch effect exists among the images having various luminance and chroma levels. Firstly, five images were selected. Then each image was adjusted to have 4 different average CIECAM02 C and 5 different average CIECAM02 J. In total 20 test images were generated per each image for the psychophysical experiment. The psychophysical experiment was done in a dark room using a LCD display. To evaluate the overall perceived brightness of images a magnitude estimation method was used. Fifteen participants evaluated the brightness of each image comparing with the reference image. As a result, participants tended to evaluate the brightness higher as the average CIECAM02 J and also CIECAM02 C of the image increases proving the Helmholtz- Kohlrausch effect in images.

Paper Details

Date Published: 8 February 2015
PDF: 6 pages
Proc. SPIE 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, 93950X (8 February 2015); doi: 10.1117/12.2081114
Show Author Affiliations
Semin Oh, Ulsan National Institute of Science and Technology (Korea, Republic of)
Youngshin Kwak, Ulsan National Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 9395:
Color Imaging XX: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)

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