- Published on May 27, 2014
- 2nd prize winner of the 2014 Best Illusion of The Year Contest
Mark Vergeer, Stuart Anstis, and Rob van Lier
University of Leuven, UC San Diego, Radboud University Nijmegen, The Netherlands
In this visual illusion one colored image can lead to completely different color impressions. The impression depend on the grey scale transparent image that is presented on top of the colored image. The 2 colored images on the left and the right are exactly the same, constructed from a combination of the color profile of the forrest picture and the Manhattan skyline picture. The grey scale image that is presented on top of this colored image reinforces the colors that are congruent with the the gray scale image and inhibits incongruent colors. As a result the color impression is very different for the image when the forrest grey scale image is presented on top, compared to when the skyline image is presented on top. This illusion is a demonstration of how in our brain color and contour information is combined before the eventual perception is determined.