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 Author  Topic: Determining Color From B&W Images
Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Mar 1, 2015 - 5:55am
Good luck, I can't even tell grays. Box A and box B are the same color, the background not the letters:



Interior white and deck gray? Hold your finger over the middle separation to see they are the same:





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Will Day

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Will Day   Send Email To Will Day Posted on: Mar 1, 2015 - 3:45pm
Wow...

Will

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Roy Forbes

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Roy Forbes  Posted on: Mar 2, 2015 - 8:45am
WOW guys, this gives me a crazy idea !! Just think if I did the entire "What If" reunion diorama in just black and white like an old photo. Man could I have saved some time trying to decide on the "correct" color for all these boats. But wait a minute, what color should I make all those palm trees ???


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Drew Cook

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Drew Cook  Posted on: Mar 2, 2015 - 9:09am
Jeff,

Interesting.

To me, boxes A and B in the first picture remain different colors (A is dark and B light) no matter how I look at it or what I do.

The change to B (going dark, the same color as A) when I put my finger between the separation in the second illustration is -- remarkable.

Obviously, besides such knowns as human skin and hair tones, standards of uniform dress (officer's khakis, enlisted men's light blue chambray shirts and darker blue dungaree pants), and others (such as pilot's yellow Mae Wests), its always tough to accurately determine colors from b&w photos.


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ducati650

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of ducati650   Send Email To ducati650 Posted on: Mar 2, 2015 - 7:21pm
I put 3 fingers across the first picture with one gap across "A" and the other across "B". Once I do that so that the light that seems to flood across "A" is blocked, everything changes, both square are the same color as "B".


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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Mar 3, 2015 - 5:32am
Thanks Ed, the 3 finger trick worked I can see they are the same. Take the fingers away and they seem to slowly get different.

Roy, the lighter gray trees are probably suffering from Pink Palm Disease so paint accordingly!

I didn't come up with either illusion by the way, I got them from a link on steelnavy:
http://www.washingtonpost.com/blogs/wonkblog/wp/2015/02/27/12-fascinating-optical-illusions-show-how-color-can-trick-the-eye/

I posted these because the rounded edges of the 2nd image made me think of the rounded roof edges of Elco 80' houses. And the "guess the color" games I've seen where people have claimed with a certain degree of certainty what the color was. It's probably best to just ask Al.



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David Waples

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of David Waples  Posted on: Mar 3, 2015 - 8:38pm
That's a cool illusion but I still can't make the first example work.

I was just talking with one of my ship club buddies about color modulation. Take a look at this picture of the USS New York. It looks like they've painted the lower part of the hull a darker grey than the upper sections. Having floated by this beast I can tell you that it is all exactly the same color. It's also apparent in the towers top side. Something to keep in mind when you're painting your models. :-)

 photo USS-New-York.480_zpsbxv1tkeh.jpg

David Waples

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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Mar 4, 2015 - 3:00am
Good example David, sure looks like a 2-tone paint job at first glance!

On the first illusion, try holding 2 fingers in a victory V to block out the side boxes, then use a finger from the other hand to block out the middle.



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David Waples

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of David Waples  Posted on: Mar 4, 2015 - 4:23am
It worked that time Jeff. Thanks

David Waples

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