A magic eye puzzle thingy that freaks me out
Here's a magic eye puzzle type thing I found while checking my Entrecard inbox. Generally eye puzzle and/or 3D stuff drives me flipping crazy. This one is no exception.
Take a look at the image below. It's a checkers (or chess) style board with a large cylinder sitting on it. Take a good look at the image. Pay particular attention to the two sections marked 'A' and 'B'. Now answer this, are blocks 'A' and 'B' the same colour?

Image source: Blogsters Guild.
After staring at this for a while, there was no way that I could say 'A' and 'B' were the same colour, no matter how I approached it. Being the untrusting, sometime skeptic that I am, I opened the image in Photoshop and used the 'eye dropper' tool to find out what colour the two blocks were. Sure enough, they were both exactly the same colour (HEX # 787878). I have to admit, it's quite cool, but at the same time I think it may have fried my brain.
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This is cool.
I did the eyedropper thing as well and I still don’t believe it.
how is that possible? is that not possible?
I can’t believe it either – you got me how they did it !
The way that they get you is with all those other distractions in the picture. If you cover everything but block A with your hands and then slide it down to block B, you will see that block A and block B are, indeed, the same color. This happens, because our eyes fool the brain into continuing a pattern, such as the checkered pattern that is seen on chess boards. (You can read how this happens here: http://timesofindia.indiatimes.com/articleshow/3051612.cms)
The dark squares around B are darker than A b/c they are also in the shadow. But people just assume b/c of the pattern that they are the same color as A and since B is lighter than those around it they assume B is lighter than A.
What’s worse is, using Photoshop, I snipped a piece of block A, and dragged it down to block B — the dang thing seemed to change color.
Crazy.
I erased everything in the picture but blacks A and B, and, sure enough, same colour.