Pretty cool optical illusion

Rantorama

Came across this link on the SA forums today.
I've never seen this type of optical illusion before
Check it out http://home.no.net/antska/

slipss

ha thats good, i love those optical illusion things

6th

best illusion i've seen yet - well done!

Alun

That's pretty cool indeed. This is one of my favourites, and no, before you ask, it's NOT an animated GIF, just a JPG image.

Ruu_Old

Neat, nice find

Crucifix

That first one was really great.

Terry

am i the only one who thought it was lame?
it was just some form of layering.
i want those 30 seconds back.

Crucifix

julep wrote:

am i the only one who thought it was lame?
it was just some form of layering.
i want those 30 seconds back.

It's not just layering. If you follow the instructions but look away for the thirty seconds it doesn't work.

Crucifix

Crucifix wrote:

It's not just layering. If you follow the instructions but look away for the thirty seconds it doesn't work.

Yeah I tried that a few times - it really doesn't work unless you stare at the dot

Terry

all you have to do is move the cursor to the right of the screen.
they probably have it timed, so that it doesn't work until after 30 seconds have passed.

slipss

julep wrote:

all you have to do is move the cursor to the right of the screen.
they probably have it timed, so that it doesn't work until after 30 seconds have passed.

lol nah your wrong julep, its to do with negative afterimaging and the way your brain processes colour and memory, google negative afterimaging for a proper explanation.

negative afterimage - An optical phenomenon in which the eye's nerves continue to convey an image after an initial image has departed. Typically, the afterimage appears as a likeness of the initial image, except that each of its colors is the complement to those in the initial image. Sometimes called a complementary afterimage or a photogene.

Orlee

That is so cool!

Crucifix

julep wrote:

all you have to do is move the cursor to the right of the screen.
they probably have it timed, so that it doesn't work until after 30 seconds have passed.

I think you're doing it in reverse. You've got to move it too the right, and the black and white pic goes negative. Then you stare at the dot for thirty seconds, and when you move the mouse back the pic looks to be in the actually colours for a moment.

EWheelChair

Alun wrote:

That's pretty cool indeed. This is one of my favourites, and no, before you ask, it's NOT an animated GIF, just a JPG image.

Oh man, why don't they print wall paper like that? Imagine what the 60s would have been like :P

Terry

oh. right. that seems to make more sense.
i was looking at the black and white image and then moving the mouse.

and the dumbass of the year is...

xzanti

Link wont work for me

Paddy_Irishman

slipss wrote:

lol nah your wrong julep, its to do with negative afterimaging and the way your brain processes colour and memory, google negative afterimaging for a proper explanation.

negative afterimage - An optical phenomenon in which the eye's nerves continue to convey an image after an initial image has departed. Typically, the afterimage appears as a likeness of the initial image, except that each of its colors is the complement to those in the initial image. Sometimes called a complementary afterimage or a photogene.

Dont know what your rabbiting on about dude but maybe the 'trick' is as you say it in waffle terms.

you just wait for the image to appear, move your mouse off the screen, click the image then move your cursor off it again and it will turn a funky colour, obviously the colour that had been removed from the photo, and when you move your mouse back on to the pic it is in colour but if you move your eyes at all it reverts to black and white. Possibly that jibberish explanation above is it.

Basically, the black white pic has the colour element layered behind it when you click the image and move your mouse off it.

Plug

Best optical illusion I ever saw;)

Darragh29

Thats brilliant!

Alkers

If you move your eyes from the dot after following the instructions the colour dissapears and if you focus on the dot again it goews back to colour, fairly class.

slipss

Paddy_Irishman wrote:

Dont know what your rabbiting on about dude but maybe the 'trick' is as you say it in waffle terms.

you just wait for the image to appear, move your mouse off the screen, click the image then move your cursor off it again and it will turn a funky colour, obviously the colour that had been removed from the photo, and when you move your mouse back on to the pic it is in colour but if you move your eyes at all it reverts to black and white. Possibly that jibberish explanation above is it.

Basically, the black white pic has the colour element layered behind it when you click the image and move your mouse off it.

ehhh, yeah thats how you do the trick, I was trying to explain why it works

Puteq

EWheelChair wrote:

Oh man, why don't they print wall paper like that? Imagine what the 60s would have been like :P

excellent idea! I think i am going to waste a lot of ink when i get home this evening and print off a few dozen pages and plaster one of my walls and see how it looks

MrJoeSoap

First one wouldn't work for me, so apologies if this is a re-post.

This one is quite good. Stare closely at the three small dots in the centre for 30 seconds, then move to a flat and clear part of a nearby wall and blink fairly rapidly for a couple of seconds. See what you can see.

stevenmu

It works on the principle of rod/cone depletion. The back of your eye has thousands of tiny little rods and cones, some sensitive to red, some to green and some to blue. When light of a particular colour falls on a rod/cone sensitive to that colour, it releases a chemical which triggers a signal to your brain. If you continually stare at that colour, the rod/cone temporarily runs out of the chemical needed and stops working.

In this illusion, staring at the dot keeps your rods/cones focused on the same spot. While your staring, the red and green rods/cones focused on say the sky become depleted. When the image changes to the black and white picture, the blue rods/cones focused at the sky have much more of the chemical left so the signal created by them totally overpowers the signal coming from the red and green rods/cones, tricking your brain into thinking that it's looking at something blue. Moving and refocusing your eyes changes which rods/cones are being pointed the sky and gives them all a chance to recharge which is why it goes back to black and white.


Cool illusion.

miju

jesus christ thats mental joe :-)

MrJoeSoap

miju wrote:

jesus christ thats mental joe :-)

Hehehe

xzanti

MrJoeSoap wrote:

First one wouldn't work for me, so apologies if this is a re-post.

This one is quite good. Stare closely at the three small dots in the centre for 30 seconds, then move to a flat and clear part of a nearby wall and blink fairly rapidly for a couple of seconds. See what you can see.

Hey its the boss

WhiteWashMan

ahahahahahahaha.

i couldnt figure out what the hell was supposed to be so special until i realised the picture is black and white!

thats pretty cool

BrokenArrows

edit:never mind cool illusion

!_Brian_!

That was really cool! Nice one!

stevenmu

Lol, that's what I thought at first too . The illusion part is that if you follow the instructions correctly, the mouseover image, which is in black and white will appear in colour.

DonkeyStyle \o/

Good one.

Ivan

how about this for size...

http://www.spikedhumor.com/articles/30136/Cool_Illusion.html

oxygen_old

*Sigh* Theres always one.

jetfire

ha ha thats really good

monkeyfudge

Ivan wrote:

how about this for size...

http://www.spikedhumor.com/articles/30136/Cool_Illusion.html

Strange... I didn't know what he was talking about the first time I watched it... But once I knew the effect he was talking about I was able to spot it...

Ivan

monkeyfudge wrote:

Strange... I didn't know what he was talking about the first time I watched it... But once I knew the effect he was talking about I was able to spot it...

Thats sorta the point

But, if you hold your hand on the screen over a bit of the facial features you can actually see into the hole that he's talking about. Its pretty damn cool

monkeyfudge

Ivan wrote:

Thats sorta the point

But, if you hold your hand on the screen over a bit of the facial features you can actually see into the hole that he's talking about. Its pretty damn cool

No... I saw it for what it actually was.... I had to really concentrate to see it as convex on both sides.

OctavarIan

Here's one. Focus on the 'YO' at the center of this spiral for about 30 seconds, then look at your hand or something stationary!

http://yoism4.home.comcast.net/MagicYo.gif

BMH

Anyone have a rehost of the original link? Bandwith exceded.

BMH

I found the original thread on SA, but it lacks instructions. Anyone?

Irishpimpdude

BMH wrote:

Anyone have a rehost of the original link? Bandwith exceded.

i havent seen it either

BMH

Here's the thread, but it lacks instructions,
http://forums.somethingawful.com/showthread.php?threadid=1895804&perpage=40&pagenumber=1

BMH

Ah, here's a rehost:
http://www.johnsadowski.com/big_spanish_castle.html

Ivan

monkeyfudge wrote:

No... I saw it for what it actually was.... I had to really concentrate to see it as convex on both sides.

Well thats impressive, you really shouldnt be able to "counteract" that affect.

At least without going mad or something

monkeyfudge

Ivan wrote:

Well thats impressive, you really shouldnt be able to "counteract" that affect.

At least without going mad or something

I think my eyes kept tracking the front of chaplin... and then kept to the edge when it went out of view.