We measured discrimination thresholds for illumination changes along different chromatic
directions starting from chromatically biased reference illuminations. Participants viewed a …

By determining the locations of boundaries between colour categories, we measured
changes in the colour appearance of test-reflectances as a function of the simulated …

Abstract Objects hardly appear to change color when the spectral distribution of the
illumination changes: a phenomenon known as color constancy. Color constancy could …

The degree to which color constancy holds can be estimated by various methods.
Categorical color naming is one we used to reveal categorical nature of color constancy …

In two experiments simultaneous color constancy was measured using simulations of
illuminated surfaces presented on a CRT monitor. Subjects saw two identical Mondrians …

Distinct physical processes can change the spectrum of the illumination that impinges on a
surface. Here we consider two such changes. The first is a change in the spectrum of the …

In natural complex environments, the elevation of the sun and the presence of occluding
objects and mutual reflections cause variations in the spectral composition of the local …

Previous studies on color constancy have found that the color appearance of a test surface
varies both as a function of the illumination in the image and as a function of the image …

Color constancy is the ability to perceive constant surface colors under varying lighting
conditions. Color constancy has traditionally been investigated with asymmetric matching …

Does the light coming from a surface (as opposed to the surface color) appear the same
after adaptation to a new illumination as it did before the illumination changed? Many …