Interesting Optical Illusion

Chmee · Post by **Chmee** » August 15, 2005, 3:16 pm

http://www.marginalrevolution.com/margi ... iti_1.html

Funkmasterr · Post by **Funkmasterr** » August 15, 2005, 3:21 pm

Interesting, although I can't say I completely understand how its possible.. I have to stare at it a bit more.

Seebs · Post by **Seebs** » August 15, 2005, 4:51 pm

This demands a Snopes ...

Dregor Thule · Post by **Dregor Thule** » August 15, 2005, 5:12 pm

Dang. Some guy says he went into photoshop and eyedropped them and they were the same. Damn our mere human eyes. Amazing what the surrounding colours can do to change perception.

miir · Post by **miir** » August 15, 2005, 5:17 pm

No need to snopes it...

You can verify it yourself in 5 seconds with mspaint.
Just eyedrop 1 square and scribble on the other.

Chmee · Post by **Chmee** » August 15, 2005, 5:20 pm

Dregor Thule wrote:Dang. Some guy says he went into photoshop and eyedropped them and they were the same. Damn our mere human eyes. Amazing what the surrounding colours can do to change perception.

To double check I pulled up the image in paint and copied a portion of each square and pasted them next to each other, its the same shade.

Nick · Post by **Nick** » August 15, 2005, 5:21 pm

Aye I did the same, it's actually the same colour.

As Dregor said, it will be something to do with the surrounding colours, still, pretty fucking cool.

Fash · Post by **Fash** » August 15, 2005, 5:59 pm

great illusion, seen it before... if ya polygonal lasso the A square, and then slide it back and forth to the B square, it appears to darken/lighten as you're moving it...

Seebs · Post by **Seebs** » August 15, 2005, 8:58 pm

Did it .. still mystified.

I wonder if I painted my penis gray ... would it seem larger or just look like a chessboard?

Chmee · Post by **Chmee** » August 15, 2005, 9:36 pm

There are some flash animations of some simpler illusions (I believe by the same guy) with explanations here http://web.mit.edu/persci/gaz/gaz-teaching/index.html. Fun stuff.

Post by **Sylvus** » August 15, 2005, 10:05 pm

Seebs wrote:Did it .. still mystified.

I wonder if I painted my penis gray ... would it seem larger or just look like a chessboard?

Paint it silver and it'll look just like a needle!

[Show]: ZING

Dregor Thule · Post by **Dregor Thule** » August 15, 2005, 10:46 pm

Sylvus, you so funny!

Bubba Grizz · Post by **Bubba Grizz** » August 16, 2005, 9:19 am

Unless you were told to examine this I really wouldn't know to care that they are the same shade. Interesting I guess.

Ogbar · Post by **Ogbar** » August 16, 2005, 10:23 am

Wow, I just flashed back 24 years to Design 1 class ...

BTW Dregor: Christopher Walken is saying "You've just been pranked", not "You got pranked"

Dregor Thule · Post by **Dregor Thule** » August 16, 2005, 11:58 am

Yeah, I know, I didn't make it. It's getting replaced soon anyways.

Funkmasterr · Post by **Funkmasterr** » August 16, 2005, 6:01 pm

Ogbar wrote:Wow, I just flashed back 24 years to Design 1 class ...

BTW Dregor: Christopher Walken is saying "You've just been pranked", not "You got pranked"

I was just looking at that yesterday and didn't think it seemed to match up.