A psychophysical experiment was carried out to study the white appearance of a tablet display under 17 ambient lighting conditions with different chromaticities, including one dark condition, seven conditions with chromaticities on the Planckian locus, and nine conditions with chromaticities off the Planckian locus. A panel of sixty-three naive observers participated in the study. One-standard deviation error ellipses were used to define the boundary of white appearance; the bivariate Gaussian distribution were used to correlate the degree of white with the chromaticities. It was found that both the boundary of white appearance and the degree of white appearance varied with the ambient lighting conditions. The findings also suggested that the degree of chromatic adaptation was low under the low CCT illuminants.
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| Published : | 05/01/2018 |
