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White balance tool in Photoshop

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Matija
Matija on 12 Mar 2014
Commented: Image Analyst on 16 Mar 2014
Hello all,
here I am with a rather complicated question:
do you know how white balance tool (eyedropper) in Adobe Photoshop works?
Thanks, MM.

Accepted Answer

Image Analyst
Image Analyst on 13 Mar 2014
I have a crude white balancing program that works simply by linearly scaling each color channel independently. Photoshop probably does something more sophisticated but for what it's worth, I've attached it.
  2 Comments
Image Analyst
Image Analyst on 16 Mar 2014
By the way, if anyone wants code to launch Photoshop from MATLAB, see the attached m-file, below in blue.

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More Answers (2)

Laurent
Laurent on 13 Mar 2014
Maybe it is better to ask your question in a Photoshop related forum. Anyway I don't think Photoshop will tell you the exact algorithm that they use, but I found some sites that explain what it does, for example this one: http://www.scantips.com/lights/flashbasics1f.html

Matija
Matija on 16 Mar 2014
Hello all,
Laurent, yes, I was interested how Adobe does white balancing and I posted the same question on Photoshop forum...but without any useful reply.
Image analyst, yes, I am already using your version of white balancing algorithm :-)
Thank you!

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