home > flying colours > akiyoshi kiaoka illusions : 1 | 2 | 3 | 4

Gallery of Akiyoshi Kitaoka illusions

            
     
In this modulation of the Koffka Ring (right) there appears to be four colours in this image although there are actually only three colours.
image: Modulated Koffka ring
    
image: Colour contrasts
            
   

Also See:

Colour illusions
The eye
Colour TV

      
In this illusion, red appears to be orange or magenta (purple) due to colour contrast effects.