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곽영신

Kwak, Youngshin
Color & Imaging Sciecne Lab.
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Investigation of the Helmholtz-Kohlrausch effect using wide-gamut display

Author(s)
Oh, SeminKwak, Youngshin
Issued Date
2015-02-09
DOI
10.1117/12.2081114
URI
https://scholarworks.unist.ac.kr/handle/201301/46902
Fulltext
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2109912
Citation
Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, v.9395
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. © 2015 SPIE.
Publisher
Color Imaging XX: Displaying, Processing, Hardcopy, and Applications
ISBN
978-162841485-1
ISSN
0277-786X

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