Talk:Same color illusion

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[edit] Bad Joke?

Maybe I didn't get the whole thing, but are those squares really supposed to have the same color? Because any 'pick color' tool will tell you this is nothing but a joke: there's a gradient from #b9b9b9 to #6c6c6c between those 2 squares.

Are YOU joking? It's #787878 all the way. What image are you looking at exactly? This one [1] from A to B? It's #78. Try moving your hands on either side of the "gradient", and you'll see it. Herd of Swine 03:23, 14 June 2007 (UTC)
Sorry. I was using a modified pick color tool with average sample over a 20px radius. It obviously didnt show the right pixel values. Shall I delete what I said?
No, others might make the same mistake. It really does LOOK like there is a gradient, and it's hard to believe it's not. Herd of Swine 22:15, 15 June 2007 (UTC)
At the size in the article, it looks like there's a gradient, but this becomes less apparent the further in you zoom. When the bridged A-B shape is about 15mm tall, it almost appears to be the solid grey it is. I zoomed the full-size image to 400% on a 1280*1024 17" 4:3 monitor. boffy_b (talk) 11:19, 15 March 2008 (UTC)

[edit] Move?

I think this page should be titled Same color illusion. NickelShoe 14:57, 16 December 2005 (UTC)

  • I agree with you. --StevenL 04:00, 5 January 2006 (UTC)
    • Guys, everybody else in the world calls this the checker shadow illusion. There are many, many other brightness illusions that also result in two patches appearing to be different colors, when in fact they are the same; thus, the name "Same color illusion" is hardly descriptive. 128.197.81.69 15:00, 28 March 2007 (UTC)
      • Can I point out that the actual letter B is darker than the letter A, lending to the illusion of the patch difference?

[edit] Yay!

If I squint, and cover the green cylinder with my hand, I can see the identity! Try it! DS 14:55, 21 January 2006 (UTC)


You are a liar, sir. They are not the same color. This might work in a real-life example, but the picture is a mock-up to show the effect. —Preceding unsigned comment added by 138.163.0.43 (talk) 18:46, 15 January 2008 (UTC)

[edit] Missing Links

There used to be links to Flash files and other animations that show the truth of the same-colorness much better than the animated gif does. Where did those links go??? 70.20.147.17 12:33, 7 August 2006 (UTC)

[edit] Physics or Psychology?

It seems like most other optical illusions stubs are classified as psychology stubs. Is there any particular reason why this one is called an optics stub instead? Stebbins 06:59, 8 November 2006 (UTC)

[edit] Visible simmilarity

Wouldn't joining squares A and B with line of the same color (in the green cylinder image) make the simmilarity more obvious ? I mean something like this---- Xil/talk 17:01, 7 May 2007 (UTC)

Yes, i agree, your image does make the similarity more obvious Rombust 09:20, 14 June 2007 (UTC)
Not entirely - To me it looks like the current bridge of the "same color" is actually a gradient of shades, lighter on one end than on the other. (Certainly I believe you that the bridge is just one color - There just isn't that "aha!" moment where I can see for myself it is.) -- 128.104.112.147 (talk) 14:36, 2 June 2008 (UTC)
(Should have clicked on Xil's link instead of assuming it was the same as the current image ([2])) To me, the wider band of Xil's image does a better job than the narrow one currently used. -- 128.104.112.147 (talk) 14:41, 2 June 2008 (UTC)

[edit] Removal of the Animated Gif

I feel that the animated gif on this article is not helpful at all. For one thing it animates way too fast, and it changes so much that it doesn't prove the illusion in my own personal opinion. Oh and what's that circle thing that comes into view on the far right on a few frames!?