Laura Dietsch

Color constancy

We might think that colors are something physically established in nature. A banana is always yellow
and a tomato is always red. What if it was just an illusion?
If we add a blueish light on a banana it will still appear yellow to our eyes, but if we take a picture and
we check the color of the pixels it will display a light blue color reference. How is it possible?
Color constancy is the ability to perceive the color of an object whatever its lighting environment. The
causes of this phenomenon are still under debate but it would imply several different elements in our
visual system like the adaptation of photoreceptors in the eye, the comparison with the surrounding
colors, color memory…
I created a website in which people can experiment color constancy and play with it. I want to make
them question what a color really is. Are colors something defined in nature or is it a matter of our
perception and interpretation?
Website of the project : Website

Laura Dietsch
Laura Dietsch
Laura Dietsch
Laura Dietsch
Laura Dietsch