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Extending CIECAM02 and CAM16 for the Helmholtz–Kohlrausch effect

Extending CIECAM02 and CAM16 for the Helmholtz–Kohlrausch effect Increasing the purity of a visual stimulus increases its brightness, even if the stimulus luminance is held constant. This perceptual phenomenon is known as the Helmholtz–Kohlrausch (H–K) Effect. This paper reviews published experimental data and models of the effect. Using past experimental data, we derive a modification of the CIECAM02 and CAM16 color appearance models to account for the H–K effect and compare the proposed model to other models. Finally, we discuss the need for further experimental data on the H–K effect to refine the proposed model. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Color Research & Application Wiley

Extending CIECAM02 and CAM16 for the Helmholtz–Kohlrausch effect

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References (15)

Publisher
Wiley
Copyright
© 2022 Wiley Periodicals LLC.
ISSN
0361-2317
eISSN
1520-6378
DOI
10.1002/col.22793
Publisher site
See Article on Publisher Site

Abstract

Increasing the purity of a visual stimulus increases its brightness, even if the stimulus luminance is held constant. This perceptual phenomenon is known as the Helmholtz–Kohlrausch (H–K) Effect. This paper reviews published experimental data and models of the effect. Using past experimental data, we derive a modification of the CIECAM02 and CAM16 color appearance models to account for the H–K effect and compare the proposed model to other models. Finally, we discuss the need for further experimental data on the H–K effect to refine the proposed model.

Journal

Color Research & ApplicationWiley

Published: Oct 1, 2022

Keywords: brightness; color appearance model; Helmholtz–Kohlrausch effect

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