Topic awaiting preservation: Another optical illusion.. (Page 1 of 1)

Focus on the cross in the center and the purple dots will magically disappear.



QUOTATION: "If you're too open minded, your brains will fall out."

Also if you follow the green dot, it dissapears That is awsome

EDIT: Opened in ImageReady, and there is no green dot! Damn I feel dumb


(Edited by Ensellitis on 06-24-2005 06:27)

I don't remember the exact term for this, but it's something like complementary color or persistance. Your eyes are use to one color, when it suddenly change, you brain compensante it, thus a magenta turning grey will look green for a short period of time. A Blue turning grey will look yellow ...

That's brilliant! A green dot that isn't there, and a series of purple dots that appear to disappear - perceptions is a fickle thing, huh?

ZZZZZZZZZZZZZZZZZZzzz.....

I think it has to do with a mix of theories, which includes the percistance of vision. Red and Green being complimetary colors if mixed properly produce neutral gray color, the same color the background is, shove in the theory of percistance of vision and you have this illusion.

oh my good gosh.

can i ever trust my eyes again?

>> For best results, squeeze from the bottom and flatten as you go up <<||

Good Lord! that gotta be the coolest optical illusion I've ever seen!!

Hey... I seen this before...
Still cool though, I think I've seen a better optical illusion somewhere, but this is the best one of those I still remember.

That got me interested in colour-based illusions, so I went looking and found this one:

Just stare at that blue patch...

Neato. I see a green-yellow spot in the neighborhood of the blue spot.

Oh. Well, um... it was actually supposed to fade away altogether. lol

The yellow/green patch you're seeing is where your eyes are wandering very slightly from the same spot - but the illusion would not work so well with a central focal 'spot' (like the black cross in the initial post) as it would influence the viewer's colour perception.

I'm really tired. Watching ( or trying to watch ), optical illusion may not be good idea.

Wow! A pair of green boobs, with blue nipples!

Never let your sense of morals get in the way of doing what's right.
Isaac Asimov
US science fiction novelist & scholar (1920 - 1992)

Dio - ROFLMAO!

Aha! A more detailed version of the first illusion: Rapid after-image demonstration.

This one allows you to change the colour and saturation in order to see various 'opposing colours', and explains in some detail how the illusion works. Do check it out.

Here's another one from the same site that demonstrates motion-induced blindness with a similar result.

ZZZZZZZZZZZZZZZZZZzzz.....

(Edited by White Hawk on 06-30-2005 12:28)

WH: I noticed that the blob in the center started to disappear, but I found it hard to concentrate long enough for it to disappear completely. I kind of got tired of having to pick my eyeballs up off my keyboard and stick them back into my head.

And I love that site you just linked to. I discovered that a while ago and went through every one of the illusions. I love this stuff.

___________________________
Suho: www.liminality.org | Cell 270 | Sig Rotator | the Fellowship of Sup

I posted this link in PS a while back. If it's illusion...and it's not here...it ain't an illusion.
http://www.amazing-optical-illusions.com/

try this one:



not an animated gif.

Wow... That's seriously cool!

DEAR GOD, MY EYES! MY PRECIOUS EYES!!!

All of these are cool.

(Edited by qwertyuiop on 07-12-2005 03:42)

My own remake of a classic, just for fun:



http://www.slimeland.com/misc/checkerillusionconfirmation.jpg


 

Ahh, all excellent illusions. I've seen all of these before. I really love the wobbly pattern ones! Some really fun items. For something somewhat related, you should check out Wendy Carlos' color vision page, which has a bit of a tutorial as well

http://www.wendycarlos.com/colorvis/color.html

Enjoy!

Slime: I've always loved that one. No matter how many times I see it, and despite the fact that I "know" the squares are the same color, I always think, "No way on God's good earth that those two squares are the same color." It's one of those illusions that absolutely refuses to calculate even after you know the truth.

I'm going to descend into D&D dorkiness here for a moment, but I used that example to explain to someone why they had to roll to disbelieve an illusion even after their character had been told that it was an illusion. I found a book with this illusion in it and showed it to the guy. "These two squares are the same color," I said. "No way," he said. "Exactly," I said. "Now roll."

___________________________
Suho: www.liminality.org | Cell 270 | Sig Rotator | the Fellowship of Sup