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Re: Color balancing images
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Re: Color balancing images


  • Subject: Re: Color balancing images
  • From: Dan Reid <email@hidden>
  • Date: Wed, 15 Nov 2006 14:10:09 -0700
  • Thread-topic: Color balancing images

Title: Re: Color balancing images
on 11/15/06 1:49 PM, Nathan Duran at email@hidden wrote:

>> You don't need a neutral to use this method. Simply double click on any eye
>> dropper in curves or levels and click the area you want to adjust. If you
>> want
>> that color selection lighter simply bring up the B of HSB in the Photoshop
>> ColorPicker window. Simarily if you want to reduce a color cast you bring
>> down
>> the S of HSB. Shifting of hue, yup, is H. Once adjusted click ok to return to
>> the curves or levels window. Reclick on the area sampled, voila’, quick and
>> dirty color adjustment. Save as Photoshop droplet (action) for batch
>> processing or use Photoshop’s automate to batch process a folder of images.
>
> All this does is redefine the target "neutral" value to something other than
> middle gray. If you attempt to remove a color cast by lowering the
> saturation value in the color picker to zero, the final result will be
> absolutely identical to what you would have obtained by simply clicking with
> the gray point tool once in the same location. It is still necessary to have
> a neutral area in the image to sample as even the section of the manual/help
> files entitiled "To color correct using the eyedroppers" which describes
> this behavior will confirm.

Correct. The method I mentioned allows you to not completely neutralize a color, say if you don't really have a neutral gray patch to click, or if you want to retain some color in the area selected. The point being is that the eye dropper (colorpicker) does not need be neutrals as everyone thinks they have to be in order to use this tool.
--
Dan B. Reid    
RPimaging
Color Management Products and Training for Print, Internet, and Motion Graphics
http://www.rpimaging.com | Toll Free: (866) RGB-CMYK

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