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Amendment of CIECAM02 with a technical extension to compensate Helmholtz-Kohlrausch effect for chromatic characterization of display devices

Title
Amendment of CIECAM02 with a technical extension to compensate Helmholtz-Kohlrausch effect for chromatic characterization of display devices
Authors
Kim, MinkooJo, Jae-HeePark, YungKyungLee, Seung-Woo
Ewha Authors
박영경
SCOPUS Author ID
박영경scopus
Issue Date
2019
Journal Title
DISPLAYS
ISSN
0141-9382JCR Link

1872-7387JCR Link
Citation
DISPLAYS vol. 56, pp. 1 - 10
Keywords
CIECAM02Helmholtz-Kohlrausch effectLightnessDisplay
Publisher
ELSEVIER SCIENCE BV
Indexed
SCIE; SCOPUS WOS
Document Type
Article
Abstract
This paper proposes a method of compensating for the Helmholtz-Kohlrausch (H-K) effect which is a factor not being concerned in CIECAM02. H-K effect refers to the color appearance phenomenon that colored light appears brighter than achromatic light of the same luminance. By the magnitude estimation method, the perceptual lightness of active matrix liquid crystal display (AMLCD) is investigated. The results show that the lightness values predicted by CIECAM02 are lower than perceptual lightness values evaluated by the psychophysical experiments because of the H-K effect. The results on MobileCAM-v2, which is a refined version of CIECAM02, are investigated, as well. Since the color gamut of the display has been widening, the compensation for the H-K effect has also been increasingly important. In this paper, the method to compensate for the H-K effect in CIECAM02 is proposed. By modifying Fairchild's equation, which is previously announced for CIELAB, CIECAM02 can be developed as a more complete color appearance model that can be universally applied to the display devices having a wide color gamut.
DOI
10.1016/j.displa.2018.09.005
Appears in Collections:
조형예술대학 > 색채디자인전공 > Journal papers
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