väriyhteneväisyys
Väriyhteneväisyys, also known as color constancy, is a fascinating perceptual phenomenon that allows humans and other animals to perceive the color of an object as being relatively constant despite changes in the illumination conditions. In simpler terms, the color of an apple looks red whether it is viewed in bright sunlight, under a dim incandescent bulb, or in shadow. This is crucial for our understanding of the world, as it helps us recognize objects reliably.
The brain achieves color constancy through a complex process of chromatic adaptation. When the light source
Several theories attempt to explain the mechanisms behind color constancy. One prominent theory suggests that it
Despite its effectiveness, color constancy is not perfect. Under extreme changes in illumination, or when viewing