The strawberries appear red, despite their lack of any red pixels, because of color constancy, or the way that the human brain is designed to perceive the same colors under a range of circumstances.

It might be hard to swallow the truth, but there is no red in this photo at all, only pixels of color that appear red relative to the other colors. Kitaoka's picture uses something called color ...

But what is actually in front of you is a picture with absolutely no red pixels. The red colour of the strawberries is merely your mind playing tricks on you because of the blue background.

Except the catch is that there aren’t any red pixels at all in the picture, just a whole lot of gray. Akiyoshi Kitaoka, a professor of psychology at Ritsumeikan University in Japan, created the ...