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Other Topics => Off Topic Discussion => Topic started by: Rev. Powell on September 01, 2019, 06:14:29 PM

Title: Optical illusion?
Post by: Rev. Powell on September 01, 2019, 06:14:29 PM
So Popular Science claims this is an optical illusion. It doesn't look like one to me.

(https://img-s-msn-com.akamaized.net/tenant/amp/entityid/AAG4R3z.img?h=533&w=799&m=6&q=60&o=f&l=f)

Apparently, because of something called "color constancy," you're supposed to see these strawberries as red (or at least see some shades of red). They look 100% shades of green to me. They do say "most" people see red.
Title: Re: Optical illusion?
Post by: Svengoolie 3 on September 01, 2019, 06:21:51 PM
Greener than an ork's ass to me...
Title: Re: Optical illusion?
Post by: Allhallowsday on September 01, 2019, 06:46:47 PM
green
Title: Re: Optical illusion?
Post by: RCMerchant on September 01, 2019, 07:07:19 PM
Greener than baby s**t. A little light blue too.
Title: Re: Optical illusion?
Post by: ER on September 01, 2019, 07:28:44 PM
I only see green, Rev. I think they're messing with our minds for fun and profit.
Title: Re: Optical illusion?
Post by: Leah on September 01, 2019, 09:25:21 PM
Green with a little bit of yellow and blue. The image has been filtered.
Title: Re: Optical illusion?
Post by: bob on September 01, 2019, 09:59:40 PM
it's green as goose s**t
Title: Re: Optical illusion?
Post by: ER on September 01, 2019, 10:02:54 PM
I would suggest this is like the emperor's new clothes but we all seem to see his birthday suit.
Title: Re: Optical illusion?
Post by: Gabriel Knight on September 02, 2019, 05:58:33 AM
They're just as red as the forum's background.
Title: Re: Optical illusion?
Post by: Svengoolie 3 on September 02, 2019, 06:40:13 AM
Quote from: Gabriel Knight on September 02, 2019, 05:58:33 AM
They're just as red as the forum's background.

Clever!
Title: Re: Optical illusion?
Post by: zombie no.one on September 02, 2019, 07:44:34 AM
yep I only see green strawberries there. weird

btw here's my favourite one...

(https://allthatsinteresting.com/wordpress/wp-content/uploads/2016/03/checker-shadow-illusion-768x596.jpg)

squares A and B are exactly the same colour
Title: Re: Optical illusion?
Post by: frank on September 02, 2019, 07:56:36 AM
Quote from: Rev. Powell on September 01, 2019, 06:14:29 PM
So Popular Science claims this is an optical illusion. It doesn't look like one to me.

(https://img-s-msn-com.akamaized.net/tenant/amp/entityid/AAG4R3z.img?h=533&w=799&m=6&q=60&o=f&l=f)

Apparently, because of something called "color constancy," you're supposed to see these strawberries as red (or at least see some shades of red). They look 100% shades of green to me. They do say "most" people see red.



I guess it's a poor filter choice with too much blue (or not enough grey). If I understood correctly, a balanced green/blue dominance in a picture shifts the perception of "objectively grey" towards red. Here is a better example with the possibility to block out most of the picture. (I especially like how the color of the "mask" seemingly shifts color depending on what part of the picture you concentrated on...).

https://michaelbach.de/ot/col-strawbsNotRed/index.html (https://michaelbach.de/ot/col-strawbsNotRed/index.html)
Title: Re: Optical illusion?
Post by: Svengoolie 3 on September 02, 2019, 07:58:15 AM
Here,  have an optical. Illusuion that isn't BS.

(http://img.gawkerassets.com/img/18dn2gyxtjilljpg/original.jpg)
Title: Re: Optical illusion?
Post by: Rev. Powell on September 02, 2019, 08:25:57 AM
Quote from: frank on September 02, 2019, 07:56:36 AM
Quote from: Rev. Powell on September 01, 2019, 06:14:29 PM
So Popular Science claims this is an optical illusion. It doesn't look like one to me.

(https://img-s-msn-com.akamaized.net/tenant/amp/entityid/AAG4R3z.img?h=533&w=799&m=6&q=60&o=f&l=f)

Apparently, because of something called "color constancy," you're supposed to see these strawberries as red (or at least see some shades of red). They look 100% shades of green to me. They do say "most" people see red.



I guess it's a poor filter choice with too much blue (or not enough grey). If I understood correctly, a balanced green/blue dominance in a picture shifts the perception of "objectively grey" towards red. Here is a better example with the possibility to block out most of the picture. (I especially like how the color of the "mask" seemingly shifts color depending on what part of the picture you concentrated on...).

https://michaelbach.de/ot/col-strawbsNotRed/index.html (https://michaelbach.de/ot/col-strawbsNotRed/index.html)


Yep. That one illustrates the red illusion they're talking about. Looks like Popular Science used the wrong picture somehow! Guess that's why they're "Popular" Science, not "Expert" Science.
Title: Re: Optical illusion?
Post by: Trevor on September 02, 2019, 08:30:02 AM
That is how I see my undies daily: reasonably clean  :wink:
Title: Re: Optical illusion?
Post by: Svengoolie 3 on September 02, 2019, 08:33:30 AM
Quote from: Trevor on September 02, 2019, 08:30:02 AM
That is how I see my undies daily: reasonably clean  :wink:


In your. Case fumes may be causing the hallucinations...
Title: Re: Optical illusion?
Post by: Bushma on September 02, 2019, 11:07:15 AM
Yellow-Green strawberries.  They should have just stayed on the vine longer and they would have been fine.   :tongueout: