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Topic : "Anyone care explain this.." |
soogarrush
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Joined: 09 Jul 2002
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Location: Socal
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 Posted: Tue Oct 15, 2002 10:25 am |
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how is this possible! i checked in photoshop  
sry but im easily amazed  |
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Max
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| Posted: Tue Oct 15, 2002 10:47 am |
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Yes, it's truly amazing.
But here is the averment.
I didn't cheat!
How can that be ???
I know...optical illusion...but how does it work exacrtly??? |
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balistic
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Location: Reno, NV, USA
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| Posted: Tue Oct 15, 2002 10:52 am |
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| All it means is that your brain perceives values (light and dark) relatively, not absolutely. You could describe both the sun and a patch of snow as being "white", but side by side, the sun is many times brighter than snow. |
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Max
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| Posted: Tue Oct 15, 2002 10:52 am |
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Hmm...
Good explanation balistic..thank's.
[ October 15, 2002: Message edited by: Max Kulich ] |
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[Shizo]
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Joined: 22 Oct 1999
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| Posted: Tue Oct 15, 2002 12:52 pm |
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It's a problem in photo cameras. The aperture vs. white balance thing.
It shows how photo cameras and human eyes have the same "technology" to adapt to environment's lightning level, pretty cool  |
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A.Buttle
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Joined: 20 Mar 2000
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| Posted: Tue Oct 15, 2002 7:35 pm |
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White balance corrects colors on digital or electronic equipment, while the aperture descreases the amount of light allowed to strike the image sensor or film emulsion.
Two completely different things. |
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balistic
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Location: Reno, NV, USA
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| Posted: Tue Oct 15, 2002 7:47 pm |
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I do okay at picking values. I think it's definitely something that can be learned. It is part of the same process by which an artist learns to start seeing shapes and forms instead of iconographic objects.
I'd say I'm better at color than I am at value though . . . I can look at a point on an image and match it with the color picker. I almost never use the eyedropper tool. Taking a still life or figure painting class can greatly help with color and value perception. |
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MoleculeMan
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Joined: 12 Jul 2001
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Location: Chicago
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| Posted: Tue Oct 15, 2002 9:20 pm |
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Yeha i thought it was pretty cool. Though i noticed that they were the same color if you looked at only one, then the colors looked the same in your perrefrial(i know for a fact that is spelled wrong) vision.
still very cool
jake |
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edraket
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Location: Rotterdam, The Netherlands
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| Posted: Tue Oct 15, 2002 11:04 pm |
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That is so amazing. I know it works like that..But still I couldn't believe it.
So is there people that can see those values for what they are? That have ...like...a color picker function in their brains.
I certainly don't seem to be very good at this. |
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Ripelly
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Joined: 05 Oct 2001
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Location: Finland
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| Posted: Wed Oct 16, 2002 1:03 pm |
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| just hold your finger horizontally on top of the gradient between the squares and you'll see the true values of A and B instantly. |
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gigatron
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Joined: 27 Jun 2002
Posts: 347
Location: Canada
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| Posted: Wed Oct 16, 2002 1:07 pm |
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| DAMN IT!!!!!! YOU BEAT ME TO IT!!! I was gona post this!!!! ARGH! I first saw it on the AVS forums (audio video science forums) |
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Andromeda
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Joined: 18 Jan 2000
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Location: Lower Ward, Sigil
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| Posted: Thu Oct 17, 2002 8:40 am |
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I couldnt believe my eyes ... so i erased the other elements in the picture leaving just the two squares. and what do u know ...
The human brain is so easily fooled.
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