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By on December 16, 2009, with 53 Comments

Type Addicted is a typography book, often used by designers and graphic artists. Aside all this, probably it became popular just because of its front cover. Up-close the cover is an unassuming pattern of black and white triangles, but when you try and view the cover from a few feet back, the title of the book comes into focus. You can see the photo of this posted below. Each of these methods will help seeing the illusion: narrow your eyes and relax them, go slightly cross-eyed, and/or simply move few feet away from your monitor. Still, the best method for seeing this is reserved for those of you using our widget – shrinked thumbnail reveals it all, ayeh? If you wish to see more illusions that work on the same principal, you should check Soulwax CD cover, as well as pixelated versions of Marilyn Monroe, Johnny Depp, etc… Does anyone understand the science behind this? Only thing I noticed is that some of the black triangles (that produce letters) are slightly blurred. As always, chime in and let me know what you think about our newest illusion!

Type Addicted Optical Illusion Cover
Type Addicted Optical Illusion Cover

Comments

53 Responses
  1. shruti says:

    wow its cool !!!!

    really i got “TYPE ADDICTED” !!

  2. Terra Wah says:

    I love these

  3. egdirbr says:

    that is cool!

  4. Rudy says:

    Cool. It seems that in all the background pixels the black and white triangles are the same size, and in the ‘on’ pixels the black triangle is bigger (it includes the diagonal line).

  5. Tinderbox says:

    Yeah, It’s got to be a case of the Title square having slightly more black in them, so as suggested above, the diagonal line would be ideal. Nice illusion though. Good analogy for taking a step back to see the bigger picture!

  6. Art says:

    What i can tell from looking close . is i can see that the portion of the black triangles that make the letters are slightly bigger.
    If anyone played with paint , it’s like extra line of pixels to make something wider or taller .

    That’s why we can’t see it up close cause some people will see that there is something odd with it , but will not see the picture . but walking away that fatter triable fills in white space more then the rest and you can see the pattern .

  7. Jupiter says:

    Wow. It worked. It took a while but when I looked at it with my eyes squinted it finally showed up. I also found it interesting that if you look “through” it (kinda like the magic eye pictures) its a field of hollow cubes…

    • Annie says:

      i dont likke the Magic Eye pictures. i never learned how to see them lol but if i squint i can see it says TYPE ADDICTED across the book

  8. Care Bear says:

    Now you’ve made my eyeballs go wonky. This is not an illusion that goes well with blended bi-focals.

  9. Nizati says:

    Very cool ^___^

  10. DIANE LEREW says:

    It took me awhile, I could only see it if I crossed my eyes, Then the words are crystal clear, but only for a few seconds then they fade away. Neat illusion, but now my eyes are sore!!

  11. Ajidicia says:

    Hi, As Rudy says, it’s seems that the diagonal line is part of the “trick”. Another part is that the white triangles which are included in the title of the book are not totaly white, but are a bit grey.

  12. evee44 says:

    I saw it eventually. The top image of the book at an angle is easier to see though. It seems the further from the imgae, the easier it is to see.

  13. T.J says:

    I just squinted and I could see it straight away.

  14. Janice says:

    Wow amazing! I love these :D

  15. Jean Pierre says:

    This one I like… Simple but great.
    Just looking at it didn’t do it for me, but moving my head from left to right and back while looking at it did…

  16. Samuel Norbury says:

    awesome. Just awesome.
    Also works very well if you scroll up and down =D

  17. Victoria says:

    oh my gosh i saw it! in case you dont see it try to look at your nose
    :)

  18. Anonymous says:

    If you can’t see it, I blurred the image and posted the result at:
    http://j.mp/justblur

    A contrast and brightness enhanced version is at:
    http://j.mp/contrast-enhanced

  19. popesantaxiv says:

    Or simply take off your glasses if you have very poor vision. =)

    Excellent illusion!

  20. Danny Hodgetts says:

    I went into paint to investigate this, and found that the letters had an extra row of lines… I played around with these for a while and I could write my own text in it!

  21. How is it done? Nice illusion ^^

  22. vp says:

    Nice idea. Face to face the person would not see.

  23. Sara says:

    i am short-sighted, and for a moment i wasn’t wearing my glasses and it was pretty shocking seeing the title appearing on the cover! glasses back on: puff! title gone! :) ahaha
    cool!

  24. Joep says:

    So, assuming that the people that see an extra line of pixels are right, I think the “science” behind this is that your eye will not be able to resolve the edge between black and white at some point. It will then make the edge of the trangles appear grey. However the eye will still be sensitive for contrast in the grey and will therefore show a different contrast for the ‘dark’ and ‘light’ pixels.

  25. Nemanja Curcic says:

    some black triangles are a bit larger and that’s the cause

  26. Ow…it makes my eyes tired really quickly. This may be affected by the fact that I am really tired right now.

  27. Jon says:

    There are a few lighter pixels (a dark grey) around the black triangles that form the letters that are very hard to notice.

  28. wowaname says:

    popesantaxiv is right. Especially if you’re using a Wii :p

  29. cheese says:

    hello my name is cheese this is a gay illusion i can do better than this by pulling down my pants.

  30. Vicki says:

    If you’re lucky enough to wear bifocals, (finally, a plus!) tilt your head back so you’re looking through the bottom of the lens and it will appear.

  31. anthony miller says:

    I noticed “type addicted” right away upon looking at it but wasn’t convinced that I had deciphered the whole allusion. I think it happened so quik for me because I didnt look directly at it, just viewing it from the corner of my eye.

  32. NeoNeo says:

    lol i love these kinda illusions i think i saw “TYPE ADDICT ED”

  33. Xobubblie says:

    I didn’t see it. How come? =(

  34. Bani says:

    I have the impression that it works like those Magic Eye books

  35. Anonymous says:

    awsome!!!!!

  36. Andy says:

    It seems like the ‘square’ border around each black/white triangle pair is also slightly different… there is a distinct solid black line bordering the ‘on’ areas between each ‘on’ block ?

  37. ewaff832 says:

    When I take my glasses off, I see it perfectly with no effort. With them on, I can barely see it at all.

  38. Tim Ammons says:

    That’s awesome! Also if you take the negative of that (I simply print screened and inverted colors in ms paint) it comes out in white instead of black. Did it to see if I could notice anything from rapidly cycling between the normal and negative.. but no such luck..

    The blur sounds good to me.. I could see it a bit after magnifying.. the extra bits of pixels.. and ewaff832′s comment seems to reconfirm it also

  39. It is actually quite easy to do in Photoshop with semi-opaque layer masks layered on top of each other.

  40. girlie says:

    i don’t see it

  41. Hi says:

    i dont see it… it just gives me a headache…

  42. buguelson gauthier says:

    whats written on the book is type addicted, that was so easy

  43. buguelson gauthier says:

    i am the first to realize that

  44. crikey mikey says:

    It’s telling me to KILL. Why would it tell me to do that?

  45. o.i.e. says:

    go back squint/unfocus your vishion and you will see it!

  46. Danny says:

    Anyone who can create a (small) program to ‘substract’ the same amount of ‘normal’ triangles from this picture? Should be possible with photoshop as well …

  47. Carol says:

    When you defocus your eyes and blur the image, you filter out some of the high spatial frequency content (the sharp edges) that interferes with your ability to see the broad shapes (lower spatial frequencies). Moving back from the screen has the same effect; you can no longer see the high frequencies, and the lower frequencies move into a range to which you’re more sensitive.
    http://www.psy.vanderbilt.edu/courses/hon185/SpatialFrequency/SpatialFrequency.html

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