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human mind is so easy to trick?

this is unbelivable

   
7:58 am on Oct 20, 2002 (gmt 0)

10+ Year Member



first look at this :

[dynamic2.gamespy.com...]

really nice optical trick!

the reason why i am psoting this thread - today i saw something that even if i tried to prove in photoshop still cant belive :)

here:

[www-bcs.mit.edu...]

i could not belive so i went to photoshop,set pixel size to 30, schoose color of square A and connected it with square B! it is the same shade of grey. amazing...how easy can human mind be tricked :)

jsut checking it again and again, icant believe the colors are the same! have to check in photoshop again!

[edited by: Marcia at 9:26 am (utc) on Oct. 20, 2002]
[edit reason] removed link to executable [/edit]

10:51 am on Oct 20, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



I had to check it as well.

WOW.

Chris.

11:02 am on Oct 20, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



that is cool
11:21 am on Oct 20, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Weird.

I quite like the first one, I found a really cool one once I will try and find it and post.

Dazz

5:07 pm on Oct 20, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Wow, that is on of the weirdest things I ever seen.
Fired up Photoshop, and like everybody else saw, the colors are the same.

Simply amazing.

5:37 pm on Oct 20, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



No wonder I don't get any work done - had to check this too for myself :)

If you copy the colour of square A onto a square on a new layer in Photoshop, then drag this new square across the original layer, it gives you a clear idea as to how the eye is tricked.

Must be that the eye is particularly bad at differentiating shades of gray, and only registers gray in comparison to being a colour darker than or lighter than the surrounding shades.

Mind you the human mind is also bad at differentiating shades of gray - hence we tend to present information as either black or white. ;)

12:35 am on Oct 21, 2002 (gmt 0)

10+ Year Member



Gray squares.. amazing.
I must upgrade the buggy OS of my eyes, no doubt. :)

cminblues

1:46 am on Oct 21, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



That blew me away!
I took it into photoshop and cut them out and placed them side by side:
[david-duval.com...]
B looks so much lighter, doesn't it?
3:27 am on Oct 21, 2002 (gmt 0)

10+ Year Member



OK, not that I didnt trust anyone, but it into Photoshop also. That is absolutely wild, the same exact color. I printed out the first one to take to work tommorrow, see how many people I can get to fall over staring at it. LOL

Thanks for sharing it.

Thor

5:54 am on Oct 21, 2002 (gmt 0)

WebmasterWorld Senior Member littleman is a WebmasterWorld Top Contributor of All Time 10+ Year Member



Hehe, did the same thing with the GIMP. very cool!
6:00 am on Oct 21, 2002 (gmt 0)

WebmasterWorld Senior Member littleman is a WebmasterWorld Top Contributor of All Time 10+ Year Member



What is amazing is how little of the image needs to be shown to cause that illusion.

check it out [cgi-fun.hypermart.net]

6:20 am on Oct 21, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



For those that want the gory details, this related page gives the explaination (not my site, etc.):

[www-bcs.mit.edu...]

[please chop this message if URL is not okay to post]

7:07 am on Oct 21, 2002 (gmt 0)

10+ Year Member



littleman, even more stunningfor me ws when i opened it in psp, then ZOOMED 3 or 4 times so only those 2 squares fit on screen and it still looks totally different color!

also what i did now is to copy some little square(not all square but jsut little cut out,scrap ) from zoomed pic A and hold it in my mouse (you know ready to paste). then moved it on square A and then on square B and it is the same color:)

Jon

5:19 pm on Oct 21, 2002 (gmt 0)

10+ Year Member



Cool!

I guess context is everything, isn't it?

5:52 pm on Oct 21, 2002 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



The first one really made me laugh. That is a very cool illusion. The second one has me thoroughly confused. I too checked it in photoshop and my mind can't seem to grasp how on earth they are the same colour ... but they are! Totally freeky!
 

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