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June 3, 2006 by Vurdlak | Share  

Before you start reading this, count the circles in the image below. How many are there (if there are any)? Also known as Coffer Illusion, this optical illusion was created by Anthony Norcia and qualified for top 10 category in “Best Visual Illusion Of The Year Contest”. Anthony describes this visual phenomennon like this:

First time viewers of this display invariably do not see the 16 circles segmented from the background. Rather, they see a series of rectangles that they frequently describe as “door panels”. The illusion pits segmentation cues against what appears to be a very strong prior to interpret the image as a series of 3-D structures “coffers” with closed boundaries. (A coffer is a decorative sunken panel.) It appears that the prior involves both closure and shape-from shading assumptions.

How Many Circles Do You See?

Comments

81 Responses
  1. Anonymous says:

    cool…i see 16!!!

  2. Anonymous says:

    I didn’t see that at first but now I do, it is sooooo cool. I don’t see how anybody could see 25

  3. Anonymous says:

    16

  4. Mikayla says:

    if u say 25 i think that u r rite but those who say 16 thins is how we got 25… u hav just counted the small circles but if u imagine this as the little circles u will c wat i meen

    o o o o
    o o o o
    o o o o
    o o o o

    r they the circles that u c if so look more carefully… can u put the circles in2 squares like this

    o o o o
    o o o o

    o o o o
    o o o o

    if so then look in the middle of a square u will c a bigger circle

    am i rite?

  5. Very Odd Circles says:

    I See 25

  6. Anonymous says:

    i ddint get it at first bubt you look at the x and thres lke 15 or 16 but im pretty sure 15

  7. Sandy Banks says:

    Yes there are 25 that I can see. There are straight lines in a circle, you can use a protractor, measure each 10*(degrees) around the circumference and draw 180* diameters conecting all the 10* around the circle. That is how you can see circles in the corners of the coffers If ther are two coffers next to each other either vertically or horizontally.

  8. Anonymous says:

    16

  9. Ben says:

    this illusion is posted wrong
    your supposed to stare at the white cross and then 16 circles start to appear and eventually that all you can see

    people seeing more either cant count or are seeing circle fragments and imagining more because thats what they wantwbxvkd

  10. Anonymous says:

    i see 16 baby

  11. hammered. says:

    ..i found 32.

  12. Anonymous says:

    16!!!!!!!

  13. Anonymous says:

    Is the illusion that the circles are there or that they are not there?

  14. Kathleen says:

    THere’s sixteen!oh yeah!

  15. Anonymous says:

    Staring at the X helps. Wow…that’s cool!!!

  16. wotpsycho says:

    The people that see 25 are seeing the parts between the “real” circles. What you are supposed to see is that the vertical lines all make up the background and the horizontal lines are all in the circles. So if you see horizontal lines, they are part of the 16 circles, and the vertical lines are all part of the background. Basically, the people who see 26 are looking at the spaces between 4 of the “real” 16 circles and thinking they kinda look like circles, too.

  17. Anonymous says:

    There are really twenty-five circles

  18. Anonymous says:

    AT FIRST I THOUGHT THERE WERE ONLY 16 BUT THEN I LOOKED REALLY CLOSLY AND SAW 25 AND THEY ARE NOT FRAGMENTS OF A CIRCLE

  19. Grant says:

    Wow, it all depends if your eyes try to line them up straight or sideways. fantastic.

  20. Hoi says:

    Huh wtf how can you see 25 circles??? there are only 16…

  21. Anonymous says:

    i see 25!

  22. Anonymous says:

    I see dead people

  23. godzilla1715 says:

    i only see 16. i can’t find 20 or 25.

  24. Anonymous says:

    lessa is right we found 25 circles

  25. Anonymous says:

    audit i can’t find any how do u do this

  26. Anonymous says:

    Topperrrr! >> 31

    Or:

    Hmm, there are no circles. There are only approximations (..duh..) of circles; 16 of them are 'clearly' visible between the groups of vertical lines; 9 more are suggested (and incomplete at the bottom and top)in the complementary space between the circles mentioned first; and the final 6 are in the same vertical space but then cut off by the boundaries of the picture.

  27. Anonymous says:

    Wow… that was like magic! After like 10 seconds they magical appeared =)

  28. nicholas says:

    9+16

  29. Angel says:

    i was gonna say 16 but it’s 25 :)

  30. Monxy says:

    I see

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