December 18, 2007: Illusion - Page 2

classicman · 12-18-2007, 01:49 PM

Could you explain that in english for me? East coast if possible.

Thanks.

Clodfobble · 12-18-2007, 03:24 PM

glatt - the lines don't work because they're not 2-D. Our brain wants the towers to be converging because we see they are getting smaller towards the top, and thus must be going "away" from us. The lines aren't getting skinnier so they must be "flat." That's why LJ's quadrilaterals that get smaller towards the top produce the illusion, but plain lines don't.

monster · 12-18-2007, 03:41 PM

Well here they are swapped over. Does it still work?

if so, then the alterations phage is concerned about are immaterial.

glatt · 12-18-2007, 03:47 PM

I thought of doing that too monster, but ran out of time. Good job.

sweetwater · 12-18-2007, 08:51 PM

OK, is it because i'm new here, or does this illusion work when the image is upside down for everyone else, too?

monster · 12-18-2007, 08:59 PM

Quote:

Originally Posted by sweetwater

OK, is it because i'm new here, or does this illusion work when the image is upside down for everyone else, too?

that's because you're standing on your head, honey. i reckon you'll fit right in, welcome!

(well either that or you're an aussie-type, which also works)

xoxoxoBruce · 12-18-2007, 10:33 PM

Yup, works upside down, too.
Welcome to the Cellar, sweetwater.

JuancoRocks · 12-18-2007, 10:35 PM

I'm leaning toward the first explanation.....

xoxoxoBruce · 12-18-2007, 10:53 PM

We could discuss it over Pisa.

RellikLaerec · 12-18-2007, 11:47 PM

nah... just a pisa pisa forsa mesa

Gravdigr · 12-19-2007, 07:16 AM

?!

Saphyre · 12-19-2007, 10:27 AM

My brain is broke. Whether from the image(s) or Phages explanations about trimming.

It's just broke.

I think I'll go look at some nice Eschers now.

Slothboy · 12-19-2007, 10:50 AM

Nice one Monster, it does still work. I did a couple more experiments. The first is I flipped the one on the left horizontally, now they appear as a mirror image, both identical.

Next I flipped the one on the right as well, and suddenly the illusion is reversed and now the one on the left appears to be leaning more. Again, I didn't just flip the entire .jpg, I flipped each side individually.

This is an amazing illusion. I hate my brain for trying to confuse me.

lookout123 · 12-19-2007, 12:03 PM

ow

Laure · 12-21-2007, 10:00 AM

Phage0070, it's the SAME IMAGE. Right-click on it and select Properties. Same file path. The artifacts you show in the difference images are errors in the algorithm.

12-18-2007, 01:49 PM	#16
classicman barely disguised asshole, keeper of all that is holy. Join Date: Nov 2007 Posts: 23,401	Could you explain that in english for me? East coast if possible. Thanks. __________________ "like strapping a pillow on a bull in a china shop" Bullitt

12-18-2007, 03:41 PM	#18
monster I hear them call the tide Join Date: Dec 2005 Location: Perpetual Chaos Posts: 30,852	Well here they are swapped over. Does it still work? if so, then the alterations phage is concerned about are immaterial. Attached Images __________________ The most difficult thing is the decision to act, the rest is merely tenacity Amelia Earhart

12-18-2007, 10:33 PM	#22
xoxoxoBruce The future is unwritten Join Date: Oct 2002 Posts: 71,105	Yup, works upside down, too. Welcome to the Cellar, sweetwater. __________________ The descent of man ~ Nixon, Friedman, Reagan, Trump.

12-18-2007, 10:35 PM	#23
JuancoRocks Sir Post-A-Lot Join Date: Jun 2007 Location: Paradise Valley, Arizona Posts: 437	Illusion I'm leaning toward the first explanation..... __________________ "That's just like your opinion man"

12-18-2007, 10:53 PM	#24
xoxoxoBruce The future is unwritten Join Date: Oct 2002 Posts: 71,105	We could discuss it over Pisa. __________________ The descent of man ~ Nixon, Friedman, Reagan, Trump.

12-18-2007, 03:24 PM	#17
Clodfobble UNDER CONDITIONAL MITIGATION Join Date: Mar 2004 Location: Austin, TX Posts: 20,012	glatt - the lines don't work because they're not 2-D. Our brain wants the towers to be converging because we see they are getting smaller towards the top, and thus must be going "away" from us. The lines aren't getting skinnier so they must be "flat." That's why LJ's quadrilaterals that get smaller towards the top produce the illusion, but plain lines don't.

12-18-2007, 03:47 PM	#19
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	I thought of doing that too monster, but ran out of time. Good job.

12-18-2007, 08:51 PM	#20
sweetwater lives inside a Mobius strip Join Date: Dec 2007 Posts: 1,120	OK, is it because i'm new here, or does this illusion work when the image is upside down for everyone else, too?

12-18-2007, 11:47 PM	#25
RellikLaerec Faithful Companion Join Date: Apr 2006 Location: Buckeye City Posts: 185	nah... just a pisa pisa forsa mesa

12-19-2007, 07:16 AM	#26
Gravdigr The Un-Tuckian Join Date: Apr 2007 Location: South Central...KY that is Posts: 39,517	?!

12-19-2007, 10:27 AM	#27
Saphyre Dedicated WoWer Join Date: Aug 2007 Location: San Fernando Valley, So. Cali Posts: 35	My brain is broke. Whether from the image(s) or Phages explanations about trimming. It's just broke. I think I'll go look at some nice Eschers now. __________________ You used to captivate me, by your resonating light, now I'm bound by the life you left behind Your face, it haunts my once pleasant dreams, your voice, it chased away all the sanity in me

12-19-2007, 10:50 AM	#28
Slothboy *No known superpowers. Join Date: Apr 2004 Location: Oregon Posts: 48	Nice one Monster, it does still work. I did a couple more experiments. The first is I flipped the one on the left horizontally, now they appear as a mirror image, both identical. Next I flipped the one on the right as well, and suddenly the illusion is reversed and now the one on the left appears to be leaning more. Again, I didn't just flip the entire .jpg, I flipped each side individually. This is an amazing illusion. I hate my brain for trying to confuse me. __________________ Super perfundo on the early eve of your day. Last edited by Slothboy; 12-19-2007 at 10:56 AM.

12-19-2007, 12:03 PM	#29
lookout123 changed his status to single Join Date: Apr 2004 Location: Right behind you. No, the other side. Posts: 10,308	ow Attached Images __________________ Getting knocked down is no sin, it's not getting back up that's the sin

12-21-2007, 10:00 AM	#30
Laure Person Who Has Posted Join Date: Dec 2007 Posts: 2	Phage0070, it's the SAME IMAGE. Right-click on it and select Properties. Same file path. The artifacts you show in the difference images are errors in the algorithm.

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