Specular highlights improve color constancy when other cues are weakened.

ABSTRACT: Previous studies suggest that to achieve color constancy, the human visual system makes use of multiple cues, including a priori assumptions about the illumination ("daylight priors"). Specular highlights have been proposed to aid constancy, but the evidence for their usefulness is mixed. Here, we used a novel cue-combination approach to test whether the presence of specular highlights or the validity of a daylight prior improves illumination chromaticity estimates, inferred from achromatic settings, to determine whether and under which conditions either cue contributes to color constancy. Observers made achromatic settings within three-dimensional rendered scenes containing matte or glossy shapes, illuminated by either daylight or nondaylight illuminations. We assessed both the variabilit

SUBMITTER: Wedge-Roberts R 

PROVIDER: S-EPMC7674000 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature