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Related Experiment Video

Updated: May 16, 2026

Visualizing Visual Adaptation

Visualizing Visual Adaptation

Published on: April 24, 2017

Effects of memory colour on colour constancy for unknown coloured objects.

Jeroen J M Granzier¹, Karl R Gegenfurtner

¹Department of Psychology, University of Giessen, Otto-Behaghel-Straße 10F, 35394 Giessen, Germany;

|November 13, 2012

Summary

Familiar object colors, like those of fruits, aid color constancy. This means our brains better perceive an object's true color under varying light conditions when surrounded by typical colored items.

Keywords:

Colour constancy colour appearance memory colours object colour

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Area of Science:

Visual Perception
Color Science
Cognitive Psychology

Background:

Color constancy is the ability to perceive object colors consistently despite changes in illumination.
Hering's memory color theory suggests typical object colors influence illuminant estimation and color constancy.

Purpose of the Study:

To investigate if diagnostically colored objects in a scene enhance color constancy for other objects.
To determine the role of familiar object colors in visual perception under varied lighting.

Main Methods:

Participants matched Munsell paper colors under reddish or greenish illumination against a neutral reference.
Munsell papers were presented in scenes with diagnostically colored, incongruent, geometric, or non-diagnostic objects.
All objects were set against a black background.

Main Results:

Color constancy was significantly higher in scenes containing diagnostically colored objects.
The presence of familiar, typical colors improved the perception of unknown colors under altered illumination.

Conclusions:

Familiar object colors, or memory colors, play a crucial role in achieving robust color constancy.
The visual system leverages contextual color information from recognizable objects to interpret illuminant color and maintain stable color perception.