Color appearance characterization of highlight stimuli in HDR scenes across a wide range of diffuse white luminance

Hongbing Wang, Minchen Wei

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Various uniform color spaces and color appearance models were mainly developed for characterizing stimuli under a low dynamic range condition. Real scenes in daily life, however, are commonly high dynamic range (HDR), containing highlights with luminance beyond the diffuse white, whose color appearance characterization was never investigated in the past. This study was carefully designed to investigate the color appearance characterization of highlights in HDR scenes, covering extremely wide ranges of diffuse white luminance (up to 11000 cd/m2), stimulus luminance (up to 49000 cd/m2), stimulus chromaticities (reach Rec. 2020 gamut), and scene luminance contrast (up to 72045). The observers viewed two stimuli, including one highlight and one dark stimulus, in a viewing booth, and were asked to adjust the color appearance of another stimulus, so that the color differences between the adjusted stimulus to each of the other two stimuli appeared the same. The results clearly showed that none of the existing models, including the one (i.e., ICtCp) that was recently designed for HDR scenes, has a good performance. The models using a power function to characterize the non-linear compressive responses of the human visual system (i.e., CIELAB and IPT) had a slightly better performance. The findings provided some guidance for performing tone mapping and chroma/saturation adjustments, and clearly suggest the necessity to carry out further work to develop a better model for HDR scenes.

Original languageEnglish
Title of host publicationFinal Program and Proceedings - IS and T/SID Color Imaging Conference
PublisherSociety for Imaging Science and Technology
Pages30-35
Number of pages6
Edition1
ISBN (Electronic)9780892083626
DOIs
Publication statusPublished - Nov 2022
Event30th Color and Imaging Conference - Color Science and Engineering Systems, Technologies, and Applications, CIC 2022 - Scottsdale, United States
Duration: 13 Nov 202217 Nov 2022

Publication series

NameFinal Program and Proceedings - IS and T/SID Color Imaging Conference
Number1
Volume30
ISSN (Print)2166-9635
ISSN (Electronic)2169-2629

Conference

Conference30th Color and Imaging Conference - Color Science and Engineering Systems, Technologies, and Applications, CIC 2022
Country/TerritoryUnited States
CityScottsdale
Period13/11/2217/11/22

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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