The most amazing optical illusion I ever saw!
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Topic: The most amazing optical illusion I ever saw!
Posted By: BaldFriede
Subject: The most amazing optical illusion I ever saw!
Date Posted: June 26 2009 at 10:28
 This one really is incredible! You see spirals in three different colours, red, blue and green, right? The green and blue spirals, however, are exactly of the same colour! -------------  BaldJean and I; I am the one in blue. |
Replies:
Posted By: Mr ProgFreak
Date Posted: June 26 2009 at 10:37
Very nice! This one is quite nice, too: http://www.amazon.com/Merriweather-Pavilion-Vinyl-Animal-Collective/dp/B001MW0J2E/ref=ntt_mus_ep_wlb_oe_lp">  (It's actually the album cover of an album released this year, click the image for the vinyl edition) ------------- https://tagyourmusic.org/users/Mike" rel="nofollow - https://tagyourmusic.org/users/Mike |
Posted By: Jim Garten
Date Posted: June 26 2009 at 10:44
Ooohh - nice ones 
This is a bit of a doozie too:  ------------- 
Jon Lord 1941 - 2012 |
Posted By: Mr ProgFreak
Date Posted: June 26 2009 at 10:48
 ------------- https://tagyourmusic.org/users/Mike" rel="nofollow - https://tagyourmusic.org/users/Mike |
Posted By: TheCaptain
Date Posted: June 26 2009 at 11:10
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Explanation on the first one: http://blogs.discovermagazine.com/badastronomy/2009/06/24/the-blue-and-the-green/ - http://blogs.discovermagazine.com/badastronomy/2009/06/24/the-blue-and-the-green/ ------------- Curse your sudden but inevitable betrayal. |
Posted By: harmonium.ro
Date Posted: June 26 2009 at 15:01
| I can cleary see the blue and green are blue and green. However, it may indeed be an optical manipulation: maybe, an effect of the complementarity contrast? |
Posted By: BaldFriede
Date Posted: June 26 2009 at 15:40
Trust me; the colours are identical. I loaded the image into UPaint; both the "blue" and the "green" were of the same combination of red, green and blue (actually no red at all, 255 green and 150 blue). ------------- BaldJean and I; I am the one in blue. |
harmonium.ro wrote:Posted By: Ricochet
Date Posted: June 26 2009 at 15:42
Seeing the blue and green as blue and green IS the illusion. They're actually the same color. Explanations were offered above. ------------- 
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Posted By: harmonium.ro
Date Posted: June 26 2009 at 17:20
We're getting into semiotics now but I have to explain my position: what I see is green and blue and that is what they are to me. The fact that it's an optic manipulation of the same colour by combination with other colours and by using the recognition patterns of our brain, that is another thing. It is epistemologically correct to base your judgement over the information provided by your subjective experience, disregarding the "objective" truth (in this case the fact that the colour is actually different than what it looks like). Epistemology learns one a lot about relativity of things, perception and ration. 
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Posted By: Queen By-Tor
Date Posted: June 26 2009 at 17:24
yeah, but the green and blue are actually just a shade of turquoise IN FACT, so your semantics still don't apply  very cool effect though! |
Posted By: Vompatti
Date Posted: June 26 2009 at 17:31
I wonder what Wittgenstein would have thought about this . . . 
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Posted By: JJLehto
Date Posted: June 26 2009 at 17:48
Oh god, I hate that one. It's so freaky maaaaaaaaaan And gives me a headache  |
Posted By: harmonium.ro
Date Posted: June 26 2009 at 18:02
Of course they don't apply to you because you have a different epistemological view than mine, that was the point |
Posted By: Queen By-Tor
Date Posted: June 26 2009 at 18:03
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yes, but an illusion is subjective, the image itself remains objective. There's no denying that the color is constant throughout the image
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Posted By: Henry Plainview
Date Posted: June 26 2009 at 18:08
Oh lord, are you one of those people who doesn't believe in reality? ------------- if you own a sodastream i hate you |
Posted By: JJLehto
Date Posted: June 26 2009 at 18:10
 A and B are the same color. |
Posted By: Snow Dog
Date Posted: June 26 2009 at 18:19
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^^Now that I believe! ------------- http://www.last.fm/user/Snow_Dog" rel="nofollow"> 
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Posted By: harmonium.ro
Date Posted: June 26 2009 at 19:25
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@Mike: all knowledge is subjective (which doesn't make it more reliable than it is). Even the fact of you stating that the colour is the same is an aplication of your subjective preference for the notions of "objective realities". Of course that doesn't mean I don't agree with you about the colour. What's important to me though is that the colour looks in two different ways, and I'm basing my rational judgements on this perception, which I found more down to earth and "realistic" than keeping in mind that the colour is actually not what it looks like. @Henry: having a good sense of relativity (in an epistemological way, not ethical) actually gives one a better grip to the actual world. |
Posted By: harmonium.ro
Date Posted: June 26 2009 at 19:30
Actually this is a paradox. It is correct to say that A and B are the same thing: opposite non-chromatic expressions of light. (Meaning: they're not colours, so yeah they're the same colour ) |
Posted By: JJLehto
Date Posted: June 26 2009 at 19:36
| Well that's true there not colors...technically shades of grey I believe |
Posted By: Atavachron
Date Posted: June 26 2009 at 21:16
| ^ basically yes, color is an effect of light (in our case yellow light I guess) hitting a certain surface, no light no color.. as for Friede's spiral, perhaps that purple/orange counter-spiral is contributing to the illusion |
Posted By: Mr ProgFreak
Date Posted: June 27 2009 at 01:37
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^ Of course. The parts of the spiral that appear to be blue/green are actually the same (greenish) color, but that color looks much greener to our brain if you put it next to orange bars, as opposed to purple bars. LCDs/CRTs use subtractive RGB color models, and in those orange is composed of red and green, while purple is composed of red and blue. It makes sense ... orange makes the bar next to it look greener compared to purple, which makes the bar next to it more blue. ------------- https://tagyourmusic.org/users/Mike" rel="nofollow - https://tagyourmusic.org/users/Mike |
Posted By: harmonium.ro
Date Posted: June 27 2009 at 08:00
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Absence of light => eye perceives black Perfect environment conditions and light is seen in it's full spectrum => eye perceives white Imperfect environment conditions and light is seen distored, in not full spectrum => eye perceives colour(s)  |
Posted By: progkidjoel
Date Posted: June 27 2009 at 08:19
These are a couple of my favourites:
And 
The graffiti stairs is awesome, IMHO. ------------- 
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Posted By: Slartibartfast
Date Posted: June 27 2009 at 09:04
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Great thread, I had some posted in another thread, but I don't remember off the top of my head which thread or where, so instead I offer up these:
Apologies to Michael... I'm not entirely sure if Escher fits into the definition of optical illusion:
Then there's Dali:
------------- Released date are often when it it impacted you but recorded dates are when it really happened... 
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Posted By: Moogtron III
Date Posted: June 27 2009 at 09:13
The color examples are amazing, and the moving artwork absolutely stunning. 
I can't remember having seen that before.
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Posted By: Mr ProgFreak
Date Posted: June 27 2009 at 09:17
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I found another one: http://www.geekologie.com/2008/02/optical_illusion_made_me_lose.php">  it's obviously caused by the shapes with black edges on one and white edges on the other side. ------------- https://tagyourmusic.org/users/Mike" rel="nofollow - https://tagyourmusic.org/users/Mike |
Posted By: Mr ProgFreak
Date Posted: June 27 2009 at 09:19
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And another one: http://interactive.usc.edu/members/yuechuan/archives/2004/09/weblog_test_1.html">  ------------- https://tagyourmusic.org/users/Mike" rel="nofollow - https://tagyourmusic.org/users/Mike |
Posted By: Mr ProgFreak
Date Posted: June 27 2009 at 09:24
This one is also really nice: ------------- https://tagyourmusic.org/users/Mike" rel="nofollow - https://tagyourmusic.org/users/Mike |
Posted By: Moogtron III
Date Posted: June 27 2009 at 13:44
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Mindblowing stuff.
Sometimes it's nice when your brain is playing tricks on you.
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Posted By: Atavachron
Date Posted: June 27 2009 at 21:29
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some remarkable pavement paintings by Julian Beever, keep in mind these are each on a flat 1-dimensioned surface-- http://users.skynet.be/J.Beever/rafting.html - http://users.skynet.be/J.Beever/rafting.html http://users.skynet.be/J.Beever/timesquare.html - http://users.skynet.be/J.Beever/timesquare.html http://users.skynet.be/J.Beever/postmod.htm - http://users.skynet.be/J.Beever/postmod.htm http://users.skynet.be/J.Beever/coke.html - http://users.skynet.be/J.Beever/coke.html http://users.skynet.be/J.Beever/batman.html - http://users.skynet.be/J.Beever/batman.html http://users.skynet.be/J.Beever/globe.html - http://users.skynet.be/J.Beever/globe.html http://users.skynet.be/J.Beever/arcticwhale.html - http://users.skynet.be/J.Beever/arcticwhale.html http://users.skynet.be/J.Beever/treasure5.html - http://users.skynet.be/J.Beever/treasure5.html http://users.skynet.be/J.Beever/swim.htm - http://users.skynet.be/J.Beever/swim.htm http://users.skynet.be/J.Beever/feedfish.html - http://users.skynet.be/J.Beever/feedfish.html |
Posted By: The Quiet One
Date Posted: June 27 2009 at 22:22
One of my faves: Stare at the 4 dots for 20 seconds, and then blink against a wall...... |
Posted By: The Quiet One
Date Posted: June 27 2009 at 22:26
2 more I found: How many feet does it have?  |
Posted By: martinprog77
Date Posted: June 28 2009 at 04:52
 ------------- Nothing can last there are no second chances. Never give a day away. Always live for today. |
Posted By: martinprog77
Date Posted: June 28 2009 at 04:58
   ------------- Nothing can last there are no second chances. Never give a day away. Always live for today. |
Posted By: BaldJean
Date Posted: June 28 2009 at 09:18
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I think the illusion with the dice could be improved; there is a slight giveaway in it. the die on top appears to be a bit smaller than the ones below, which is because it is in reality not on top but further away from the viewer. if you used slightly bigger dice the further they are away from the camera for the photo it would be even more baffling
-------------  A shot of me as High Priestess of Gaia during our fall festival. Ceterum censeo principiis obsta |
Posted By: Failcore
Date Posted: June 28 2009 at 11:21
 I didn't believe this one at first b/c I'm almost always able to cancel illusions if I concentrate, but I could not on this one. However, I used the eyedropper to copy the color in photoshop and drew a streak connecting the squares to show they are indeed the same color. Amazing. |
Posted By: hitting_singularity2
Date Posted: June 29 2009 at 00:54
I love these paintings! I've always wanted to see one in real life but never got the chance. It baffles me how they calculate exactly how to distort the picture so it will look that way |
Posted By: Atavachron
Date Posted: June 29 2009 at 01:02
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^ I think my favorite is Times Square, but the Coke bottle really defies reality |
Posted By: Abstrakt
Date Posted: June 29 2009 at 17:20
DAMN! That one freaked me out a while back! I saw a Jesus in front of my eyes for MINUTES! It wouldn't go away even if i closed my eyes! |
Posted By: Abstrakt
Date Posted: June 29 2009 at 17:23
And i love these kind of impossible figures & optical illusions!  Here's one i like:  |
Posted By: Abstrakt
Date Posted: July 02 2009 at 12:41
| BUMP |