Mud-club

Chat & Social => The Bar - General Chat => Topic started by: pritch on January 29, 2005, 08:19:41

Title: Another one to melt your brain
Post by: pritch on January 29, 2005, 08:19:41: Seeing as pdutton has decided to try and break your minds, here's another contribution.

Are squares A and B the same colour?
Title: Another one to melt your brain
Post by: xmob on January 29, 2005, 08:48:08: According to PSP they are. :?
Title: Another one to melt your brain
Post by: pritch on January 29, 2005, 08:49:07: Quote from: "xmob"
According to PSP they are. :?

Don't worry mate, you're not the only one who opened up a graphics package to check that one!
Title: Another one to melt your brain
Post by: Andy the Landy on January 29, 2005, 12:33:59: Check this out that Paul posted last night http://www.liquidgeneration.com/sabotage/optical_sabotage.asp
:D
Title: Another one to melt your brain
Post by: Xtremeteam on January 29, 2005, 14:26:45: Quote
xmob wrote:
According to PSP they are. Confused

Don't worry mate, you're not the only one who opened up a graphics package to check that one!

How are they the same ? :?
Title: Another one to melt your brain
Post by: BIG_ORANGE_90 on January 29, 2005, 14:34:02: Eh? :shock:
Title: Another one to melt your brain
Post by: xmob on January 29, 2005, 14:36:37: It's a very clever trick of the eye.
Title: Another one to melt your brain
Post by: Xtremeteam on January 29, 2005, 14:38:28: still just as confused
Title: Another one to melt your brain
Post by: BIG_ORANGE_90 on January 29, 2005, 14:43:38: What? im still lost.
Title: Another one to melt your brain
Post by: karloss on January 29, 2005, 17:08:36: Quote from: "BIG_ORANGE_90"
What? im still lost.

Save the picture as a .bmp open it with paint then use the ink dropper tool. You'll see they are both the same colour. It's just an illusional thing.
Title: Another one to melt your brain
Post by: POTASH on January 29, 2005, 17:39:32: im still lost :-k
Title: Another one to melt your brain
Post by: thermidorthelobster on January 29, 2005, 18:04:10: Right... Square A and Square B *are* the same colour.

If you cover the screen with your hands so you can only see a very narrow vertical slit, you can see this is the case, although it does mess with your head somewhat. It also results in greasy fingermarks on your screen.

Weird, isn't it?
Title: Lowey waffles on & on & on.....
Post by: lowey on February 02, 2005, 21:55:06: If grey is a colour and A & B are shades of grey on the same 2 dimensional image taken in isolation then yes they are the same colour. :-s

However, if the whole image is taken as a 3 dimensional image with the representation of light casting a shadow past the vertical solid cylindrical object then the representational notional colours are still grey, but one "B" light grey in shadow and the other "A" dark grey fully illiminated.

So if A is grey & B is grey irrespective of shading or shadow effects then they are both grey & hence the same colour. #-o

My brain has just exploded , i will have to take a tablet ArGHHHH! ](*,)
Title: Another one to melt your brain
Post by: POTASH on February 02, 2005, 22:05:27: [-o< o yes :cry:
Title: Another one to melt your brain
Post by: MTyrrell on February 02, 2005, 22:41:39: Ahhh............ Very cleaver