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Checker Shadow Illusion
This is an optical illusion by Edward H. Adelson who is a professor of Vision Science at MIT. The above picture shows that the squares marked A and B are of the same gray shade. Don’t believe what your eyes are telling u?
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Here is the answer to cast off your doubt.
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October 8th, 2006 at 8:13 pm
come on now. the grey rectangle used to verify the shades in tiles A and B is filled in gradient!
October 10th, 2006 at 4:00 am
[...] Diana Hsieh blogged about some optical illusions that are posted on Hemmy.net. [...]
October 10th, 2006 at 8:07 am
This does actually work.. I pasted this to paint and then i moved square a down by square b and they match perfectly…
December 4th, 2006 at 1:39 am
U sure the A in image one is the same Colour as the A in Image 2 cos i don’t think so…. :S
December 4th, 2006 at 11:46 pm
The light is the variant in the two pictures.
May 17th, 2007 at 6:18 am
It just a test of our optical dynamic range, we can´t difference between light changes in gray…
July 15th, 2007 at 1:23 pm
The color may be same but when the shadow falls on the B its color differs from that of A.
August 28th, 2008 at 3:22 am
if you take the pic into photoshop and use the color grabber tool….
it clearly shows that the squares are different shades of gray