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Correct white balance in Photoshop?

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Anonymous   06-19-2005 at 02:54:13 PM

Archived from groups: rec.photo.digital (More info?)

 

I made the wrong white balance setting on my Olympus C-5050.

The photos all came out dark and with a blue tint.

What is the correct way to restore the natural balance in Photoshop?

Thank you for any advice.

Mark Harris

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Anonymous   06-19-2005 at 02:54:14 PM
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Archived from groups: rec.photo.digital (More info?)

 

On Sun, 19 Jun 2005 08:54:13 +0930, Mark Harris
<markharris@counterkey.com> wrote:

>I made the wrong white balance setting on my Olympus C-5050.
>
>The photos all came out dark and with a blue tint.
>
>What is the correct way to restore the natural balance in Photoshop?

If you were shooting RAW it's trivial. Just open the RAW file in ACR
and set the WB to what you want.

If you didn't shot RAW, you'll have to work with the curves. Now you
know why you should only shot raw or at least have a raw file.


*********************************************************

"I have been a witness, and these pictures are
my testimony. The events I have recorded should
not be forgotten and must not be repeated."

-James Nachtwey-
http://www.jamesnachtwey.com/

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Anonymous   06-19-2005 at 02:54:14 PM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

>Mark Harris writes ...
>
>I made the wrong white balance setting on my Olympus C-5050.
>The photos all came out dark and with a blue tint.
>What is the correct way to restore the natural balance in Photoshop?

If you have something that you know is neutral toned in the image you
can use the eye droppers in Levels or Curves. For example, if you have
something that you know *should* be neutral gray then add a Levels
adjustment layer and in the bottom right-corner there are three eye
droppers for black point, mid point and white point, just pick the
middle one and click on the gray point to restore color balance (or
white point if you have a known white).

If there are no known neutrals in the image then it's a lot harder but
usually there are neutrals.

Bill

Reply to Anonymous
Stacey   06-19-2005 at 02:54:14 PM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

Mark Harris wrote:

> I made the wrong white balance setting on my Olympus C-5050.
>
> The photos all came out dark and with a blue tint.
>
> What is the correct way to restore the natural balance in Photoshop?
>


Do a search but one easy way is to use "levels" and find something white,
grey or black in the image and use the eyedropper tool. Might take a few
tries, the alt key turns one of the buttons into a "reset" so you can try
again if it looks weird. Once you get the color right, the curves (or
levels sliders) will finish the process. Like someone else said, this is
why I shoot RAW but I don't think that OM has a file buffer so it makes for
LONG write times!
--

Stacey

Reply to Stacey
Fish   06-20-2005 at 11:27:41 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

Hello,

You can try Color Pilot Plug-in (http://www.colorpilot.com/plugin.html)
- the plugin for Photoshop for color and brightness correction.
The examples of white balance correction are shown here:
http://www.colorpilot.com/cp_ex07.html
http://www.colorpilot.com/cp_ex11.html

Color Pilot Plug-in allows you to save the results of the preceding
correction. If you have many photos with a similar color balance, it is
enough to correct one photo and then to click the Repeat button on the
main toolbar.
After downloading the program you can see the demonstration how to
correct several photos. For that you should open Example 14 on the menu
Examples.

Best regards,

Olga
Two Pilots
http://www.colorpilot.com

Reply to Fish
Ryan   06-22-2005 at 06:15:14 AM
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Archived from groups: rec.photo.digital (More info?)

 

> If you have something that you know is neutral toned in the image you
> can use the eye droppers in Levels or Curves. For example, if you have

What color qualifies as neutral? Is it simply a hue with an even
distribution of Red, Green, and Blue (gray tones), or something else?

Reply to Ryan
Anonymous   06-21-2005 at 11:31:45 PM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

>> If you have something that you know is neutral toned in the image
>> you can use the eye droppers in Levels or Curves.

>Ryan writes ...
>
>What color qualifies as neutral?

Black, white, shades of gray in between these two extremes ... take a
test image with color patches in it and click on some of the patches to
see the effect. These eye droppers are typically used when there's a
color cast, usually from the wrong white balance setting.

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