… stability against spatial and temporal variation in illumination. We studied images of natural
scenes … The BY response varies with changes in illumination, both across time and across …

… of reflectance spectra within these natural scenes can be … The changes of illumination spectra
with depth also constrain … of the color signals of coral reef scenes change from very flat at …

… by illuminants and by object reflectances within images as … were used, while the basis
functions themselves were stable. … those with strong contributions, are color opponent; ie, the …

… instability, as under some circumstances do background changes that produce large shifts in
the balance of signals at … It shows how the discharge of a notional coloropponent cell that is …

… signal colors are most salient against natural green … images to determine the effect of this.
These parallel results showed that even when we remove the initial changes of the illuminant, …

… 2D scenes, we found relatively high but imperfect stability of … sensory signal that reaches
the eye from a scene confounds … eye to be approximately color-opponent while remaining in a …

… small number of primary color–opponent dimensions reflects the … We therefore also examined
how the illumination varied … color—it should remain more stable across environments and …

… changes in natural scene illumination, then we predict that threshold E’s for uniform color–luminance
changes … ), photographed under a variety of different illumination conditions (sunny …

… about stable color appearance under different illuminants by … Color photographs of natural
scenes are used in this paper to … signals are potentially exploitable by object and illuminant …

… of colors in natural images varies as the seasons change. … b (S cone) signal, presumably
because these scenes included a … colors from scenes did depend on the illuminant within each …