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By on April 25, 2006, with 85 Comments

Allright, here’s what I want you to do: cross your eyes so that you see three images. Concentrate then on the middle image to sharpen it a little bit. The middle image should be a composite of both side images. Your brain should interpret that middle image as a 3d-composite image, which should produce this chair in 3D. I had troubles previously “seeing” those stereograms, but finally learned how to look at them. You can expect more interesting stereograms in the future! Previously I posted “Tube of Illusion” but I didn’t manage to visualize it. Try it and comment!

Chair Stereogram Optical Illusion

Comments

85 Responses
  1. corey says:

    that is so freeking trippy

  2. maddy says:

    that was really amazing!

  3. Lixa says:

    Can’t see anything but my nose, can’t get anything but a headache.

    • jjjj says:

      You don’t cross your eyes to see your nose. You double your vision so that you see 4 chairs instead of 2.

  4. Fabi says:

    Yeah, really nice. Very similiar to “Magic Eye”.
    But I would advise people wearing glasses to put them down.
    It worked much better when I tried it

    Have Fun

  5. loser says:

    you dont actually cross your eyes, you just have to look at the picture and stare into space

  6. Justin says:

    Dont actually cross your eyes just try to stare into space beyond your monitor until you see the three chairs.

  7. kevin says:

    I SEE 4 CHAIRS LOL

  8. vbvbvbv says:

    how do you do it?

  9. Hai says:

    hella tight!!!!!kinda like in magic eye books!

  10. Lysol says:

    Wow, this is one of the most amazing illusions on your site for sure!

  11. Riku says:

    I’m just like kevin – I saw four chairs!

  12. Salem says:

    No, I dont think this one is designed to work by staring into space. If you look carefully, you’ll notice that the two pictures simulate what your left and right eye see, only the pictures are opposite each other. in other words what you would see from your right eye is in the pic on the left, and what you would see from your left eye is the pic on the right.
    The only way that makes sense to me and that worked for me is to cross your eyes, cause that way you point your left eye to the right pic, and at the same time point your right eye to the left pic. The hard part though was after getting to see three chairs, I had to try to focus the image, which took a while.

    you’re right though… it gives me a headache :P

  13. bowlero says:

    wow thats cool

  14. Seba 719 says:

    coolAH!

  15. oboe says:

    if you know ho to cross one eye, that works too

  16. blah blah says:

    this one i dont either… i need help

  17. kristen says:

    cool stuff dude, cool stuff….

  18. MMM says:

    great illusion, need more of that, man!

  19. tatiana says:

    shut up salem

  20. Blah_Blah says:

    i can’t hold the three images while watching the middle one. once i even think about the existence of the middle one, it dissapears

    Ps first post

  21. Cosmin-Coral says:

    I agree with Salem, this is a cross-eyed stereogram, not a divergent (focussing behind the screen) one.

    • Arla says:

      Once I stopped trying to cross my eyes and started viewing beyond it just like I would a Magic Eye, it actually worked. So I guess it just depends on the person.

  22. hi every one says:

    me no get it

  23. Tammy says:

    i can’t go cross eye’d my muscles in my eyes dun’t work :’(

  24. me says:

    Salem – you are not right – it is a left pic on the left and right pic on the right (if you don;t beleive me – try turning your screen upside down and it still works) You can easily recreate this illusion on any digital camera. Just take a shot of specific point and move the camera 5 centimetres to the right and view the same exact point. the slight difference creates the 3d. try taking one of a person’s face and post here. now that looks weird – great site – keep it up

  25. Livaline says:

    Nice…took me a couple seconds, but I did manage to get it. AWESOME!

  26. andy_tok says:

    I can saw it only when I got pretty close to the image

  27. ElliexxANIMALS ROCK!! says:

    i can c 3 chairs when i stare at the screen, but i agree with Blah_Blah: it just goes away when i try staring at it!!
    it doesnt look 3D 2 me

  28. Anonymous says:

    Can’t cross my eyer =[

  29. Rob says:

    I found out about this phenomonon serendipitously when I was young [probably 50 years ago]. I would stare at a tile wall [like in a toilet, but I could probably come up with a better example] and let my eyes slowly unfocus until the squares would float closer to one another. When the square I saw with my right eye covered the one I saw with my left [I know, or vice versa], I could then “focus” on the tile wall, and it would look normal. But when I moved my finger [or whatever] towards the wall, it looked for all the world like my finger was sinking into the wall. Very strange, and I couldn’t get anyone else to get it, though I tried for a long time. Then they came out with those 3D pics that you had to look at forever to see, and I saw all of them in about a second. People couldn’t believe I found them so quickly, but I had known the secret for a long time.

  30. Rob says:

    Actually, this would have worked better had the photographer moved the chair in the second photo so that the door frame could be seen from the same perspective in both [i.e. through the same part of the chair back]. You can see the 3D effect here, but you can also see 2 door mouldings.

  31. Person says:

    wutt if u can’t *sniff* CROSS YOU EYES?!
    oh well cool anywayz
    :3

  32. Anonymous says:

    “kevin

    on 6:49 PM
    I SEE 4 CHAIRS LOL”

    you must have 3 eyes then!

  33. baddvd says:

    sorry to say you are wrong salem and cosmic-coral.
    loser, justin, me and rob are correct. you do not have to cross your eyes to see the 3D image. you just stare into space,beyond the screen, unfocus until the image appears. no eye-crossing here!

  34. Andy says:

    To clarify, your right eye must see the picture next to the words “visualize it” and your left eye must see the picture next to the words “tube of illusion.” If the screen is right side up, you must converge to achieve this effect; if the screen is upside down you must diverge to achieve this effect (assuming, of course that your head is right side up the entire time). I’m just trying to synthesize the observations of Salem and “me” (post 24)

  35. Artistic says:

    the third one just looks blurry to me!

  36. Emily says:

    I can’t cross my eyes…and andy just confused me.

  37. Anonymous says:

    Basically, salem is right, and everyone who says to diverge your eyes is WRONG!!! You obviously have to cross your eyes to see it. It’s so hard to diverge your eyes that it’s almost not even possible. As long as your screen is right side up CROSS YOUR EYES to see it.

    • Arla says:

      Right, almost impossible… that’s why those Magic Eye books are so popular. Because nobody can do it…

  38. Andy says:

    Sorry for confusing you Emily! Maybe if I were to state that converge=cross your eyes and diverge=look far away and that “the words “…” ” refers to the the text above the stereogram.

  39. Anonymous says:

    lol im sitting on the same exact chair rite now!

  40. Lori and Bob says:

    haha.. Am I the only one that sees 4 chairs? goodness, im retarded.

  41. Phoenix says:

    first time it worked

  42. Anonymous says:

    This is a cross-eye not a diverge. (I can’t do diverge, but I saw this one using cross-eye’d)

    It helps to move your head away from screen, and tilt it left or right (to align the image)

    This is really easy to make yourself, with a camera or 3D modeler. It’s called a stereogram

    • Arla says:

      How about instead of stating that your experience is the only possible way to do it, you allow for the possibility that everyone else who got results doing things differently ISNT lying and maybe… JUST MAYBE… different people can achieve the same results different ways??? It’s one thing to give advice on how you were able to do it, but to say other people’s way is wrong when they were able to perform the task is just plain ignorant. I know as a human being you think your way is the only way, but there are other people out there who aren’t you. The quicker you accept it and open your mind to that fact, the better off you will be in life in general.

  43. Anonymous says:

    Omg, that’s awesome.
    I found that it helped when I leaned in closer to the computer screen. Must have something to do with my far-sightedness. :)

  44. Elle says:

    holy cow that is freaking awesome!!!

  45. cross or diverge? says:

    CROSS!!!

  46. Pouti says:

    AAAAAA!!
    I don’t know how to cross my eyes

  47. Anonymous says:

    when i look at it and see three chairs the third one isnt in 3d its just the same chair as the one on the left and right

  48. Anonymous says:

    nvm that post i wasnt looking at it right and i didnt read the instrcutions right

  49. Morgan says:

    Um, I see 4 chairs.
    After like half an hour, I managed to see 3 chairs, but then it disappeared.
    And also, I don’t get the point. I mean, the chair is 3D anyway right?
    So I’m breaking my eyeballs trying to focus on the illusive 3rd chair just so I can see what was already there?

  50. Paz says:

    Wow, this is amazing. I figured out two tactics to make the 3d image appear. Other one is to line paper in middle of the two pictures, so that both of your eyes sees only the other picture, then you can actually see the picture been modified by your brain. The other way is to first look very close to the screen, so that your nose toches the center line of the picture. Then slowly move your head back and try to keep the picture as one. Thx, absolutely amazing illusion!

  51. Julius says:

    no mames, cómo demonios haces para verlo?? tal vez ya alucinas

  52. Anonymous says:

    oooh, wonderful!

  53. Anonymous says:

    This is hella tight.
    I’m great at regular stereograms, and I had huge issues getting this one to work. But when it did it was fabulous.

    Props.

  54. stacey says:

    this is absolutly brilliant.. i cannot view normal stereograms at all but i have no problem with these new 3d images. amazing

  55. djtg says:

    i was able to focus perfectly, anyone had any problems with it? this is awesome where can i find more like this

  56. Hubert lupalopagus says:

    i only saw 4 chairs..

  57. ANONYMOUS says:

    can’t figure this one out

  58. Sasha says:

    I’d like to see your faces when u are trying to figure out this kind of illusions ))

  59. thanks for blowing my..... mind says:

    omg finally. ive had so much trouble seeing the more difficult stereograms….. the ones with a scrambeled pick with a hidden message when you cross your eyes are easy (i learned them from the books in elementary school) but i have struggled with the more difficult ones until today…..
    time to check out the stereogram section… finally

    • Suor de Sapo says:

      On real stereograms (this is a stereocopic) you’d better not cross eyes. Instead, blur the image by focusing a point behind the ‘scrambled’ picture and relax. Imagine the horizon line far away, search around genteely, relax again. Let your mid get adapted (some patience is needed, specially for the first time).

  60. asianpearlkeeper says:

    Umm i saw 4 chairs… i dont really get sterograms 0_o

  61. I don’t get it, It just hurts my head. :(

  62. allison says:

    these are hard for me to see because i have a lazy eye.

  63. Blair says:

    First I saw four chairs…

    Then the third one became 3D. That’s just frikken awesome. ;)

  64. William says:

    ooooooooooooooooh i see it toooo cool

  65. Ms No Name says:

    wow this is truly amazing i have never seen anything like it before

  66. ron says:

    during WWII there was a group of cross eyed gi’s that were able to hold 2 pictures side by side and identify the camouflaged buildings and tanks by matching these 2 pictures and creating a 3 dimensional picture in their minds and circling the target items..interesting and true

  67. @li says:

    HELP!!
    my frnds can see it but i can’t

  68. Bubbadoo says:

    I remember that youtube a long time ago tried doing 3D videos most of them involved 3D glasses but there was one option to use this illusion to veiw videos 3D but only about 10-20 videos came out using it before they stopped but it was cool :D

  69. Gordon says:

    I see it by, relaxing my eyes about 6 inches from the screen, untill I see 3 chairs, then slowly pulling away my head maybe 2 feet with out changing my focus point the middle chair pops out in 3d

  70. inmyshoes says:

    Ha!I seen it but it was jumping all over.I cant hold my eyes still when their crossed.

  71. stretch says:

    fantastic!!! i was looking at the centerline and i thought i saw it move. then quick as a wink, there were 3 chairs. are you sure someone isn’t turning a knob or flicking a switch? if not this is a super great illusion. will be looking for others. hope it’s soon. thanks…….

  72. annie beiser says:

    yea. i do that, and get a pop-up in my face! >:T

  73. Nicole says:

    Your only supposed to cross your eyes until you see three chairs.

  74. Anas says:

    wow !! it was really cool man :)

  75. No one says:

    got it to work wow

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