Optical Illusion

[r0gu3]

Took me a minute to get my eyes back into sync after looking at that stereogram.

 

[Iceman]

Here's another technique:

1. Move your face towards the screen until the two dots on top become 3 dots.
2. Move you eyes down towards the image, making sure you keep them "crossed" by staring "through" the image
3. Move slowly away from the image, and you should begin to see a shape form. Once this happens, the image should begin to come in focus

 

[Duke]

I don't usually have problem with stereograms; that's a good one too.

What happens with the rotating dots is that red/green are paired up on one set of cone receptors and yellow/blue are paired up on the others. When you stare at the red dots, the chemical activator for 'red' in your red/green rods gets depleted. This means that when you look at a neutral background, the color balance for those receptors is screwed up and so your eye reports green dots where there are none, due to the absence of red from the depleted activators.

Jasper Johns experimented with this in the '50s and '60s by paintind American flags in green, black, and orange. If you stared at them a while and then looked at the adjacent wall, you'd see a red, white and blue afterimage of the flag.

 

[Iceman]

 

[Sage]

Jasper Johns experimented with this in the '50s and '60s by paintind American flags in green, black, and orange. If you stared at them a while and then looked at the adjacent wall, you'd see a red, white and blue afterimage of the flag.

Wow, that sounds really neat!

Eyes are fun to deceive.

 

[tabs]

Jasper Johns experimented with this in the '50s and '60s by paintind American flags in green, black, and orange. If you stared at them a while and then looked at the adjacent wall, you'd see a red, white and blue afterimage of the flag.

I remember doing that back in elementary school.

Here's one of my favorites, it blew my mind the first time I saw it.

 

[Iceman]

That is amazing

I had to cut each one out and place them together in Photoshop before I could believe they were the same.

 

[Sage]

Oh yeah, I remember Jordan posting that one a long long time ago… absolutely amazing.

 

[Mr. McShake]

What are you supposed to do with the A and B shades of grey one? Stare at it?

 

[Omnis]

the reason why the pink-to-green shows up so much better than green-to-pink is that reds don't bother your cones. that's why darkrooms have red lights and all good interior car-lighting is red.

Like sage said, the two colors are on the same "visual-sensor-processor", but in this case the eyes see green because the light-sensing rods (which reds affect) have given way to the cones (which reds do not affect), like Famine said, at that particular spot.

point is...look at red long enough and you'll see green. hahaha.

 

[Sage]

What are you supposed to do with the A and B shades of grey one? Stare at it?

You're supposed to shake your head in disbelief at the note at the bottom of the picture. Maybe even scream at it if you wish.

 

[Mr. McShake]

I see it now with the help of paint and cut. Who would of thought.

 

[the_undrtaker89]

What the hell is going on!!!!???? I'm so tripped out right now. Famine sage someone explain before I kill myself.....My eyes decieve me like they've never before.

 

[Blake]

That A and B one is crazy, I had to use Photoshop before I believed it.

Blake

 

[Touring Mars]

That's really cool... once again, I needed to cut and paste into Fireworks before I was totally convinced.... neat trick!

edit: 💡 about those stereogram/magic eye images.... I could never see them until I got a book of them that was made out of a shiny paper.... I found that staring at my reflection rather than the image itself helped.... similarly, on a computer monitor, try focusing on a reflection on the screen....

 

[barryl85]

Here's a little illusion called a stereogram. These are a bit tricky to get, but try crossing your eyes or moving your eyes very close to the screen and then move them back.

http://www.lri.fr/~marche/images/cameleon-3d.gif

I used to have a book with abouth 50 of these and never for the life of me have i ever seen anything, i cant see anything on this, im not colourblind or anything, anyone help me?

 

[kikie]

I used to have a book with abouth 50 of these and never for the life of me have i ever seen anything, i cant see anything on this, im not colourblind or anything, anyone help me?

Follow these 3 steps and you'll see. It worked for me.

Here's another technique:

1. Move your face towards the screen until the two dots on top become 3 dots.
2. Move you eyes down towards the image, making sure you keep them "crossed" by staring "through" the image
3. Move slowly away from the image, and you should begin to see a shape form. Once this happens, the image should begin to come in focus

 

[Omnis]

i'm great at stereograms...however, i can't seem to get the picture through this screen. it's too brilliant, damn it!

 

[Touring Mars]

I used to have a book with abouth 50 of these and never for the life of me have i ever seen anything, i cant see anything on this, im not colourblind or anything, anyone help me?

see my post directly above yours... not very useful unless you have a glass screen monitor though...

Try looking at the bottom of the picture... it seems to work for me... usually the image appears in the middle - you begin to see the 3D image if your eyes are slightly out of focus, so looking at the bottom might help since the rest of the picture will be slightly out of focus...

took me about 20 seconds to see this one.... it took me weeks to see my first one, but after that, it became much easier....

 

[barryl85]

can anybody highlight it? i have took your advice and have tried but still is like looking at wallpaper

 

[Omnis]

nevermind....i got it. It's super hard at first on this bright LCD, for me anyway. Paper is no problem whatsoever.

anyway, as soon as I got it my eyes were SUPER relaxed feeling even on this bright stuff. It's like therapeutic. my dad showed me stereograms at a young age, so i've always been good at them and I think they helped my eyesight.

 

[MagpieRacer]

With that spinning dots one, i wasnt watching for the dot changing colour, what i saw was the dots dissappear as the green dot went over them then repppear again, i basically was at a point when all there was was a black cross in the middle surrounded by grey.

weird

 

[Touring Mars]

With the grey squares thing... if you stare at the 'B'... you will eventually see that A and B are the same colour without having to use photoshop or anything... it's quite freaky...

 

[DustDriver]

can anybody highlight it? i have took your advice and have tried but still is like looking at wallpaper

it's not possible to highlight it because it has a 3d affect. I tried and when I looked at again it wasn't the same place that I highlighted before.

But if it it helps, here's the pic:

 

[kikie]

it's not possible to highlight it because it has a 3d affect. I tried and when I looked at again it wasn't the same place that I highlighted before.

How did you do that???

 

[Touring Mars]

How did you do that???

Yeh, I didn't know you could do that either...

That grey square thing is currently breaking the minds of those I work with...

 

[sukerkin]

Hi Barry

If you're having real trouble seeing the stereogram there's a few possible causes:

1) A 'Lazy' eye can sometimes prevent people from being able to see them
2) Your brain just isn't heavily wired-up for visual pattern recognition
3) You've not discovered the knack yet.

The last one is the one that gives you hope that you'll get it in the end as I don't think the first two can be overcome.

The technique for seeing these images is to not focus (which is why people have been talking about going cross-eyed). What you're trying to do is let your brain sort out the fact that there are two-images-in-one-space in front of your eyes and if you focus on any part of the image then you interupt the process.

Once you get the skill {which are, of course, mad, tite, dr1ftarz } then you can do these at will. You can even rotate the images whilst you're viewing and not lose the picture (tho' your eyes do feel as if they're trying to twist out of their sockets !).

 

[DustDriver]

How did you do that???

I looked at it and took the lasso-tool. But I had to look again several times because I accidently focused on the cursor

 

[barryl85]

Hi Barry

If you're having real trouble seeing the stereogram there's a few possible causes:

1) A 'Lazy' eye can sometimes prevent people from being able to see them
2) Your brain just isn't heavily wired-up for visual pattern recognition
3) You've not discovered the knack yet.

The last one is the one that gives you hope that you'll get it in the end as I don't think the first two can be overcome.

The technique for seeing these images is to not focus (which is why people have been talking about going cross-eyed). What you're trying to do is let your brain sort out the fact that there are two-images-in-one-space in front of your eyes and if you focus on any part of the image then you interupt the process.

Once you get the skill {which are, of course, mad, tite, dr1ftarz } then you can do these at will. You can even rotate the images whilst you're viewing and not lose the picture (tho' your eyes do feel as if they're trying to twist out of their sockets !).

Thanks, i'll give it another go, i dont know how many times i've tried these - dont think its the second one tho!

it's not possible to highlight it because it has a 3d affect. I tried and when I looked at again it wasn't the same place that I highlighted before.

But if it it helps, here's the pic:

Thanks i'll try and relate this to what i can see - 👍

 

[Sage]

What the hell is going on!!!!???? I'm so tripped out right now. Famine sage someone explain before I kill myself.....My eyes decieve me like they've never before.

Are you referring to the A/B gray thing?

I actually found the professor's webpage where he explains that – pretty interesting stuff. (Click on "Explanation" at the bottom.)