If you're not yet convinced with your answer, try to stare at the red dot for 30 seconds (without blinking). Then after that, look at the wall and see the colorful image there.
[Explanation] This tricky game is called Afterimage or sometime called Ghost image. It is caused by fatigued cells in the retina responding to light. The most interesting color afterimages are negative afterimages. If you stare at the red color for 30 seconds or more, the cells in your retina that respond to red will fatigue and will fire less. When you switch over to a white surface, your eyes subtract the red and you see its complementary colors.
Source: http://psylux.psych.tu-dresden.de/i1/kaw/diverses%20Material/www.illusionworks.com/index.html
hey i've done this before!!! but it was a different picture!!!!
ReplyDeletehehehe it's kinda fun!! and it works for me definitely!!
it's work.... Jjong with his stare....
ReplyDeletei've seen this kind of picture... but not people photos...
is it can be created for another photo? how can make this?thx