Great optical illusion

Dahak · Posted: Mon Oct 28, 2002 2:24 pm Post subject:

if you focus on only the grey squares, you can kind of tell, i could, but my eyes hurt after focusing so much

i need a nap.

-=ITS=-GaladerieL[Vegas] · Posted: Mon Oct 28, 2002 9:00 pm Post subject:

i still working on this and figuring it out but i will get it after close looking after a while

.. thxs for the find greebo and for sharing it

Axa · Posted: Mon Oct 28, 2002 9:44 pm Post subject:

The best way to see it (and to avoid frustrating Greenbo any further), is to save the pic, then cut the 2 squares out with photoshop, and stick 'em together on a new sheet.

Then you will see they are exactly the same color.
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sgt stutter · Posted: Mon Oct 28, 2002 11:47 pm Post subject:

Greebo I found these while looking for info on the illusion you posted hope you don't mind me posting these.

Illusory motion
Concepts being illustrated: Visual perception is generated by the brain, is not just a reflection of the elements out in the world. Not every percept has a direct physical correlate. Not every percept accurately reflects what is really going on, because the visual system has to make a number of assumptions, and once in a while, the assumptions fail.

Hermann grid
This is a variation of the Hermann grid illusion, named after L. Hermann. While he was reading a book on sound by John Tyndall, Hermann (1870) saw spots in the intersections of spaces among the figures that Tyndall had arranged in a matrix.
Concepts being illustrated: Context dependent visual perception, lateral inhibition.
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rAT bOY · Posted: Tue Oct 29, 2002 11:47 pm Post subject:

omgz that's scary
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