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Optical Illusion

  • 10-06-2006 7:36pm
    #1
    GiantCranes
    Closed Accounts Posts: 14 ✭


    I made this optical illusion today:

    http://demos.gavinjoyce.com/Imaging/Illusions/

    Instructions: Move your mouse over the image and stare at one spot for 30 seconds, then move your mouse off the image.

    HOW TO: in photoshop, change the image mode to CMYK, and make a copy of the layer. Desaturate the bottom layer (image>adjust>desaturate). The top layer you want to flip the color spectrum 180,(dont use the invert comand you'll see why if you do) use Hue/Saturation (Image>adjust>hue/saturation) and move the hue slider to 180 (-/ doesnt matter). stare at your inverted image, then hide the top layer to reveal the bottom desaturated layer to see the illusion.

    Source: http://digg.com/science/Amazing_Optical_Illusion_of_a_B_W_photo_that_colors_a_picture_in_your_brain_2


Comments

  • #2
    AdeleS
    Closed Accounts Posts: 159 ✭✭AdeleS


    Cool!! Where ya buy the green lipstick?:rolleyes:


  • #3
    CONMIKE12
    Registered Users, Registered Users 2 Posts: 432 ✭✭CONMIKE12


    Lol , oh thats really excellent.... why do your eyes do that?


  • #4
    Irish Wolf
    Registered Users, Registered Users 2 Posts: 2,178 ✭✭✭Irish Wolf


    Good work sir.


  • #5
    Alun
    Registered Users, Registered Users 2 Posts: 21,499 ✭✭✭✭Alun


    This thread http://boards.ie/vbulletin/showthread.php?t=2054943873 appeared only yesterday showing an identical illusion (different photo though). Later on in the thread someone explains why it happens.


  • #6
    Fionn
    Registered Users, Registered Users 2 Posts: 2,370 ✭✭✭Fionn


    what are my supposed to see?
    like different, i've been looking for the last while and don't see much of a change !


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  • #7
    Dimy
    Closed Accounts Posts: 709 ✭✭✭Dimy


    Fionn, did you move your mouse away from the image after about 30 seconds? What you'll see is the picture in perfect color instead of black&white... it will slowly fade back into black&white though (kinda like when you shut down windows xp and you see the background fading when you mouse over the "shut down" button... only in this case it's optical illusion, your eyes are temporarily tricked to see the picture in color).


  • #8
    Fionn
    Registered Users, Registered Users 2 Posts: 2,370 ✭✭✭Fionn


    ahhh
    now i see it!!

    a word of caution - this effect doesn't work too well after a couple of pints :o


  • #9
    EireRoadUser
    Closed Accounts Posts: 650 ✭✭✭EireRoadUser


    the first image looks a lot like a negative .
    Strange stuff ,great find

    thanks.


  • #10
    Fajitas!
    Registered Users, Registered Users 2 Posts: 16,624 ✭✭✭✭Fajitas!


    Fionn wrote:
    ahhh
    now i see it!!

    a word of caution - this effect doesn't work too well after a couple of pints :o

    That's what I was thinking last night!


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