Francisco Hideki Imai, Norimichi Tsumura,
Hideaki Haneishi, and Yoichi Miyake
Department of Information and Image Sciences,
Chiba University, Inage-ku, Chiba, Japan
J. Image Science and Technology Vol. 42,
No. 3 pp.264-268(1998).
Abstract
We improved the incomplete chromatic adaptation
model proposed by Fairchild to reproduce
facial pattern images under various illuminants.
We introduced weighting coefficients in the
modified fundamental chromaticities of the
adapting stimulus used in the Fairchild model
to improve the color reproduction. Psychophysical
experiments using memory matching technique
were performed to select the optimum weighting
coefficients of adapting stimulus for facial
pattern images. The improved model with the
optimum coefficients was compared with other
color appearance models, von Kries, RLAB,
LLAB, and colorimetric color reproduction
under three illuminants; illuminant A (2837
K), Daylight (6047 K) and Cool White (3957
K). As a result, it was shown that the improved
model performed significantly well for facial
pattern images if compared with other models.