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The Magic Cafe Forum Index » » Seeing is believing » » Great Optical Illusion (0 Likes) Printer Friendly Version

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Looch
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Personally, ive never seen this one before and its a belter!

http://www.youtube.com/watch?v=F9XlQ1Ijm......;search=

Ps its not a "make you jump out of your skin" hoax/trick so please try and do this properly and don't fast forward to the end of the video.

all the best
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wordSMITH
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That is really rather amazing!
Josh Zandman
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That is great!
wordSMITH
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The first time I watched it, I wasn't actually paying the proper attention, so the shift went straight from the inverse colours to black and white. Which made it seem fantastic the second time I watched!
Looch
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(pasted)

This optical illusion relies on a principle called "Chromatic Adaptation".

An object may be viewed under various conditions. For example, it may be illuminated by the sunlight, the light of a fire, or a harsh electric light. In all of these situations, the visual system indicates that the object has the same color: an apple always appears red, whether viewed at night or during the day. This feature of the visual system is called chromatic adaptation.

Have you ever entered a movie theater on a sunny afternoon? The room probably appeared completely dark but as your visual system adjusted to the reduced level of light you were able to see better after a few moments.

This "adaptation mechanism" allows our eyes to recover from an oversensitivity to a particular stimuli. "Chromatic adaptation" occurs when our eyes adjust to certain color stimuli. Chromatic adaptation is one of the more easily fooled aspects of vision, and is prone to some of the most spectacular optical illusions.
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Andini
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Very cool, looch. A long time ago I came across a similar illusion: http://www.johnsadowski.com/big_spanish_castle.php When I first saw it, it freaked me out. It was the coolest optical illusion I'd ever seen. That link actual links to another site that shows you how to make this illusion out of any photo.

I think this youtube one would have been interesting if someone broke the balls after the change. Then everything would out of whack!
Looch
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Thanks for the link Andini, will be making my own now!!
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Andini
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Quote:
On 2007-04-13 14:02, looch wrote:
(pasted)

This optical illusion relies on a principle called "Chromatic Adaptation".



I think it might also have to do with "retinal fatigue." This is what happens when you look at the funky-colored American flag, and when you look at a white surface, the colors are correct. Simply put, when staring at a colored image, you "wear out" the respective cones on your retina, so when you look at a white surface, the other cones take over and produce the OPPOSITE color. The same is true here. You're looking at a colored image that's opposite the colors of the true image, so when the image changes, your other cones take over and fill in the uncolored areas in the new picture.
magicmind
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"rectal fatigue"? ahh, sorry andini, must have stared at the dot to long before reading your post Smile

COOL stuff...would make a nice avatar too
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rowdymagi5
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Very Cool!
Dave V
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Here's a creepy one for you:

Image


This is a perfectly stationary image with some grey scale work going on.
No trees were killed in the making of this message, but a large number of electrons were terribly inconvenienced.
fishwasher
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That spiders pretty cool!
Sayn lay narn, marli?

http://www.bizarremagic.net
Looch
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That spiders not stationary...its just crawled across my keyboard! Smile
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Andini
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You're freakin' me out, Dave! That's wicked!
Montethrower
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So awesome. "The inner machinations of my mind are an enigma." --Patrick from Spongebob.


So cool, again...

Best,
Monte
Slim King
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Nice!!!!
THE MAN THE SKEPTICS REFUSE TO TEST FOR ONE MILLION DOLLARS.. The Worlds Foremost Authority on Houdini's Life after Death.....
Xiqual
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I don't see the spider moving. Help!!!
James
Still with the Chinese circus Smile
Dave V
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Some browsers stop animations after a certain number of repeats. You can either refresh the page, or right click and save it to your computer and view it there. You'll need to either open it from a web browser or a viewer capable of displaying animated gifs or you'll only see the first frame.
No trees were killed in the making of this message, but a large number of electrons were terribly inconvenienced.
Naidu Gautama
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Very very nice !
RickThibau
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Cool! I was waiting for a prank! :oS
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