The color constancy of three-dimensional objects.

摘要: Human color constancy has been studied for over 100 years, and there is extensive experimental data the case where a spatially diffuse light source illuminates set of flat matte surfaces. In natural viewing, however, three-dimensional objects are viewed in scenes. Little known about objects. We used forced-choice task to measure achromatic chromaticity disks, spheres, glossy spheres. all cases, test stimuli were context stereoscopically graphics simulations scenes, we varied scene illuminant. conditions both cues consistent with simulated illuminant change (consistent-cue conditions) local contrast was silenced as cue (reduced-cue conditions). computed indices from chromaticities. To first order, similar three object types. There was, reliable interaction between type condition. consistent-cue conditions, tended be best while reduced-cue The presence this presents an important challenge theorists who seek generalize models that account tests more general