Shades of Grey

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10 years 4 months ago #128540 by Br. John
Shades of Grey was created by Br. John

Attachment h600b2e6.jpg not found



Which one is darker? The top or the bottom?

http://www.slate.com/blogs/bad_astronomy/2013/12/07/optical_illusion_shades_of_grey.html
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10 years 4 months ago #128542 by MCSH
Replied by MCSH on topic Shades of Grey
My eyes insist top...

Byt both rainbow color inspector and the link disagree...

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10 years 4 months ago #128544 by
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My husband showed me this one yesterday. The top definitely looked darker, but... well I'm not gonna say and ruin it for others. Hehe...

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10 years 4 months ago #128546 by
Replied by on topic Shades of Grey
The excellent point speaks for itself - it's all a matter of context, a question of perspective.

At the same time, who's to say our perception (due to the context) is less valuable than the result of an objective check? It reminds me of that point Alan Watts makes - we should not isolate objects from their environments and try to examine them from a position of objectivity, because this is unrealistic, or as the early existentialists would say, 'inauthentic'. We find everything (colours, sounds, thoughts) in a context, so the context can't be inherently irrelevant.

If I look closely enough at the "greys" above I find tiny reds, greens and blues...

Our perception is one thing. The objective reality (or something closer to it) is another thing. We're wise to recognise that because our perception is immanent to us, and we have a tendency to prioritise it... but unwise to discard it altogether.

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10 years 4 months ago #128547 by
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Perspective and lighting are the right things to focus on, here. If it were a 2D object, they'd both be the same shade. But, since it's supposedly a 3D object, the top is darker.

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10 years 4 months ago - 10 years 4 months ago #128557 by
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The top or bottom of what?

I'm going out on the limb here but this looks like the...... the Ying Yang thing baby!



:)
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10 years 4 months ago #128575 by Manu
Replied by Manu on topic Shades of Grey
That's amazing!
The pessimist complains about the wind;
The optimist expects it to change;
The realist adjusts the sails.
- William Arthur Ward

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10 years 4 months ago #128579 by Wescli Wardest
Replied by Wescli Wardest on topic Shades of Grey
A good lesson in not judging or taking things at face value; or by our first impression. ;)


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10 years 4 months ago #128584 by
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Wescli Wardest wrote: A good lesson in not judging or taking things at face value
; or by our first impression


Exactly. Which top or bottom? :)

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10 years 4 months ago #128587 by
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Luthien wrote: Perspective and lighting are the right things to focus on, here. If it were a 2D object, they'd both be the same shade. But, since it's supposedly a 3D object, the top is darker.


We use these tricks in graphic design, 3D animation, and CGI all the time. You are absolutely right in observing that the lighting is what creates this effect. It is the shadow created by the apparent "curved surfaces" where the two blocks meet that causes your mind to perceive the top as darker.

The reality is something else all together...

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