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Optical illusion for Orph and others


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#1 Palisades

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Posted 02 October 2009 - 09:34 AM

When a horizontal x-axis looks slanted...

Unemp_10.02.09.png

What's causing the x-axis to look like that?

(Chart from EconomPic)
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#2 Broph

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Posted 04 October 2009 - 09:21 PM

Can you make the axis lines thicker?

#3 Orpheus

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Posted 04 October 2009 - 11:25 PM

I don't see any illusion, so I shouldn't comment, but I'd guess it was a contrast effect.

#4 Palisades

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Posted 05 October 2009 - 09:15 AM

View PostBroph, on Oct 4 2009, 08:21 PM, said:

Can you make the axis lines thicker?

I didn't make the chart. You can click on the reduced image to get a full-size, sharper version though. Tracing over the axes in Paint seems to weaken the visual illusion.
"When the Fed is the bartender everybody drinks until they fall down." —Paul McCulley

"In truth, 'too big to fail' is not the worst thing we should fear – our financial institutions are now on their way to becoming 'too big to save'." —Simon Johnson

FKA:
TWP / An Affirming Flame / Solar Wind / Palisade

#5 D.Rabbit

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Posted 07 October 2009 - 09:42 AM

I can see the slant, but I can also see how the longer graph bars at one end make it slant and my eyes adjust to straighten it out.

It's pretty much the same as horizontal lines draw the eye across to make objects appear wider, and why I never wear them.
Vertical lines draw the eyes up and down, so they make things look taller or longer.

I like to play with this effect myself. I built a little add on shed that is very crooked structurally, but I added cedar slab panels to the side at a countering angle and you have to look pretty close to see the slant.
AddOnShed.jpg
I really should get around to straightening out that 3.
It's a century old building and right angles are rare.
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#6 Orpheus

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Posted 09 June 2011 - 08:01 PM

The website of the Best Illusion of the Year contest (named "the Guido" after the sculptor who created it, Guido Moretti) sponsored by the academic Visual Sciences Society showcases enough interesting finalist to keep your eyes crossed for weeks. I don't have time to go through them all, so I hope you'll post your favorites back here.

#7 M.E.

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Posted 11 June 2011 - 01:33 PM

This is not from the link provided but I think it is really cool...



#8 M.E.

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Posted 16 June 2011 - 11:42 AM



#9 M.E.

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Posted 19 June 2011 - 12:58 PM



#10 M.E.

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Posted 19 June 2011 - 06:47 PM

If this belongs in another thread.  Please feel free to move it. :)



#11 M.E.

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Posted 21 June 2011 - 10:13 PM



#12 M.E.

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Posted 22 July 2011 - 08:23 PM



#13 M.E.

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Posted 07 August 2011 - 08:06 AM



#14 M.E.

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Posted 22 August 2011 - 10:51 AM



#15 Orpheus

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Posted 22 August 2011 - 11:16 PM

This anamorphosis is just outside Paris Town Hall.

a1.jpg
[article with clickable larger image here)

Think it's impressive? You don't know the half of it. The surface is far from level (but its contours would be a delightful place for many people to chat and sun themselves over lunch, without intruding on one another.

Hide: because this it too spectacular to just blurt out

Edited by Orpheus, 23 August 2011 - 12:08 AM.
replaced big hi-res file with smaller files and links


#16 M.E.

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Posted 05 September 2011 - 03:38 PM



#17 Mark

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Posted 05 September 2011 - 07:11 PM

View Postmichael elizabeth, on 05 September 2011 - 03:38 PM, said:



Mark: That's just disturbing! Imagine what our lawmakers in Washington have REALLY been telling us!
Mark
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#18 Orpheus

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Posted 11 September 2011 - 09:26 AM

View PostMark, on 05 September 2011 - 07:11 PM, said:

Mark: That's just disturbing! Imagine what our lawmakers in Washington have REALLY been telling us!

"The buck stops here", indeed!

#19 M.E.

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Posted 15 September 2011 - 09:33 AM



#20 M.E.

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Posted 06 October 2011 - 01:42 PM




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