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View Full Version : Some cool 2d illusions



shrox
09-16-2009, 08:09 PM
These are not animated, yet they appear to be moving.

http://www.womansday.com/Articles/Family-Lifestyle/8-Mind-Boggling-Optical-Illusions.html

http://www.womansday.com/var/ezflow_site/storage/images/media/images/01-wd0909-optical-illusions/719343-1-eng-US/01-wd0909-Optical-Illusions.jpg

probiner
09-16-2009, 08:38 PM
I know this for a long time now but they always make me look at them for a while.

They're called Kitaoka ilusions, from Kitaoka Akiyoshi.

Explanation
http://search.bwh.harvard.edu/concourse/900/articles/KitaokaExplanation.pdf

Lilac Chaser http://en.wikipedia.org/wiki/Lilac_chaser This one i "animated"
Focus the cross and the purple dots will disapear and there will be a green dot showing up. It's crazy. More about this in http://www1.psych.purdue.edu/Magniphi/PhiIsNotBeta/index.html Needs Java

CHeers

biliousfrog
09-17-2009, 02:49 AM
aaaaeeeeerrrrrggggghhhh!!!....my brain hurts!

archijam
09-17-2009, 05:00 AM
aaaaeeeeerrrrrggggghhhh!!!....my brain hurts!

Same .. Ouch.

One of those should be on the Core T-shirt ;)

shrox
09-17-2009, 01:55 PM
I just think the apparent motion could be used in things like billboards and advertising, in fact I am designing some packaging right now...

JeffrySG
09-17-2009, 02:16 PM
They should paint the highway lines like that!

shrox
09-17-2009, 02:26 PM
I know this for a long time now but they always make me look at them for a while.

They're called Kitaoka ilusions, from Kitaoka Akiyoshi.

Explanation
http://search.bwh.harvard.edu/concourse/900/articles/KitaokaExplanation.pdf

Lilac Chaser http://en.wikipedia.org/wiki/Lilac_chaser This one i "animated"
Focus the cross and the purple dots will disapear and there will be a green dot showing up. It's crazy. More about this in http://www1.psych.purdue.edu/Magniphi/PhiIsNotBeta/index.html Needs Java

CHeers

There are lots of "persistence of vision" illusions, but I hadn't seen one that appeared to move like the one posted does.