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This one’s pretty neat because it’s so damn unbelievable:
If you don’t believe it, use a color picker tool (like Color Picker) or crop out the 2 squares with a graphics program.
Source: Edward H. Adelson’s Checkershadow Illusion with explanation
October 10th, 2003 at 6pm
You mean the background of the squares are the same color, or the text (“A” & “B”) are the same color. The latter I can believe, the former I cannot.
That’s right, they are both 6B6B6B RGB.
Carlos E. Perez
If you got windows, capture the screen (ctrl-printscreen) and use paint to cut out each square to compare. It’s the same shade!
October 10th, 2003 at 7pm
How in the world is that possible? The colors to the naked eye are clearly different.
October 11th, 2003 at 3am
Yeah, that is… something else.
October 11th, 2003 at 10am
The orignal page of this gives a link to why this is so:
“The visual system is not very good at being a physical light meter, but that is not its purpose. The important task is to break the image information down into meaningful components, and thereby perceive the nature of the objects in view.”
Marilyn Sta. Maria
August 13th, 2004 at 7pm
I tried cutting the two section and got the same shades. If your going to look at the picture, they’re really far more different!
I hardly can’t believe this, but is true!
Blue Sky On Mars
October 12th, 2003 at 11pm
Cool checkerboard optical illusion
I just had to link to this. Is it grey or is it white? redemption in a blog: Unbelievable optical illusion…
when mistery is table it will double grass
May 30th, 2006 at 2am
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