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  #1  
Old 01-14-2008
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Photoshoping

This is an extension to my underwater photography post. I thought I would share this technique with all of you. It helps get all that blue out of the images.

open file
-Duplicate background
-Duplicatd background
(There should be two copies of the background)
-For the first copy
Edit -> Fill -> 50% Gray
-For the second copy
set the blenind options to Luminosity
-Merge Layers
Layer -> Merge Down
-Create new layer
Layer -> New -> Layer
-Set forground color to red
R:255 G:0 B:0
-Fill this new layer with forground color
Edit -> Fill -> Forground Color
-For the new red layer set the
blending options to multiply
-Merge Layers again
Layer -> Merge Down
-For the resulting layer set the
blending options to screen

Resulting in















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Old 01-14-2008
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Thanks for the tip
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Old 01-14-2008
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Ahaa... the mandrack routine. I know it well. Do yourself a favor and set it up as an action. It will automate all the steps so with a hit of a button it's done
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Old 01-14-2008
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I use Image Expert, a program that came with the Sony Cybershot camera. Hit "quick fix" and the blue goes away. Have a Marine Pack housing that cost almost as much as the camera, waterproof to 30 meters.
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Old 01-14-2008
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FYI—adding red will reduce the cyan in the image, not the blue... Cyan is a bluish green color. Much the same effect could be done by using a red filter over the camera lens.
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Old 01-14-2008
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The reason those pics are so blue, is the lack of a pair of proper strobe lights - which are required below 30 feet due to diminishing natural sunlight.

At times though, my strobes may not fill the entire frame at depth - resulting in overly bluish, or green coloration. I've found that just the use of Photoshop's Auto Levels function has an amazing effect - as evidenced by this quick before and after:

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Old 01-14-2008
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Brezzin- You must explain how to set this up as an action. It would save a great deal of time.

TB- thanks for the tip. I'm going to try it on some other photos.
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Old 01-14-2008
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I used the white balance adjuster on my photo editor and got this result

took about 30sec
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Old 01-15-2008
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Quote:
Originally Posted by kananumpua View Post
Brezzin- You must explain how to set this up as an action. It would save a great deal of time.

TB- thanks for the tip. I'm going to try it on some other photos.
what verson of PS do you own?
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Old 01-15-2008
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photoshop cs
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