The Effect of Texture on Brightness Perception in Simulated Scenes

MARTÍN, ANDRÉS; BARRAZA, JOSÉ F.

LEUKOS

ILLUMINAT ENG SOC NORTH AMER

Año: 2019 p. 1 - 9

1550-2724

It is known thatthere is a black-white asymmetry in the psychophysical response; thisis such that decrements are represented in the visual system by alarger magnitude than increments, that have an equal-magnitudedeviation from the background. One interesting prediction arises fromthis black-white asymmetry that is: an homogeneously textured surfacein which each dot belongs to a range of grays, and whose meanluminance is L, will be perceived as darker than a uniform surfacewith the same luminance L. We propose to explore this effect andanalyze its potential consequences on the brightness perception ofsurfaces in illuminated scenes. For this purpose, we performed twoexperiments: in the first one, we showed that the texture biases theperception of surfacebrightness. In the second one, we showed, by testing theeffect on simulated 3D realistic scenes, that textured walls areperceived as darker than identically painted walls with soft finish. p { margin-bottom: 0.25cm; direction: ltr; color: rgb(0, 0, 0); line-height: 115%; text-align: left; }p.western { font-family: "Times New Roman", serif; font-size: 12pt; }p.cjk { font-family: "Times New Roman"; font-size: 12pt; }p.ctl { font-family: "Times New Roman"; font-size: 12pt; }a:link { }