A review of the field of lightness perception from Helmholtz to the present shows the most
adequate theories of lightness perception to be the intrinsic image models. Nevertheless …

Lightness perception is the perception of achromatic surface colors: black, white, and
shades of grey. Lightness has long been a central research topic in experimental …

" Don Hoffman... combines a deep understanding of the logic of perception, a gift for
explaining it with simple displays that anyone can-quite literally-see, and a refreshing sense …

How the human visual system determines the lightness of a surface, that is, its whiteness,
blackness, or grayness, remains--like vision in general--a mystery. In fact, we have not even …

Various demonstrations show that a target of constant luminance can be made to appear
darker in perceived lightness merely by introducing an adjacent region of higher luminance …

Visible surfaces in a natural environment often have multiple components of reflectance,
including a diffuse component, by which light is scattered isotropically in all possible …

This study develops a neural model of how the visual system may process natural images
under variable illumination conditions to generate surface lightness percepts. It is known that …

Three compelling luminance-gradient effects are described. The first effect concerns a
brightness enhancement and a luminous mist spreading out from a central area having the …

Lightness perception is the ability to perceive black, white, and gray surface colors in a wide
range of lighting conditions and contexts. This ability is fundamental for any biological or …

Color constancy is often modeled on the assumption that color appearance in natural
scenes is a function of the visual system's estimates of surface reflectance. Some stimuli …