Lightroom 4: Add skin tone for to White Balance Selector

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I don't always remember to take a picture of my color checker passport. Do do usually shot skin in my shots.
Please add a feature like what is in Aperture 3, they ability to eye drop on a piece of skin and set the WB.
Aperture actually can detect the face, see the skin, and then set the WB.

Yes this does actually work. Contrary to popular belief all our skins have exact same ratio of the three colors. (except Asian have a tad more yellow) They are just different in luminance.
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Mark Treen

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Posted 5 years ago

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jdv, Champion

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"Contrary to popular belief all our skins have exact same ratio of the three colors. (except Asian have a tad more yellow) They are just different in luminance." [Emphasis mine.]

This is a contradiction. Skin tone is notoriously hard to get right because it is highly subjective (just like white points). Maybe Aperture has done this right -- I don't know -- but I doubt it would satisfy most Adobe customers.
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Mark Treen

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It's not a contradiction. Luminance does not equal color. Using skin to get an accurate white balance reading is not subjective.

It's an objective truth that non-Asian skin tones have the same ratio of CYM.
I agree that setting WB is subjective, especially setting what looks right for the skin. That's not at all what I'm talking about. I'm not talking about your final product or what you send to the printer. I'm talking about getting the WB accurate as a starting point for your later artistic changes. I'm talking about taking advantage of the scientific fact that if you have a human being in your shot you have the equivalent of a neutral grey by setting the CYM to a known formula. Y slightly higher then M. C 1/3 to 1/5 of M.
This functions like shooting a grey card and in practice works just as well. Darker skin tones for the most part just means the number are higher the formula still work. They have a slightly higher ratio of C but its not really noticeable. what is noticeable is Asians having a little bit more Y.

You may subjectively adjust WB after setting it to some known reading to make it look warm or cold depending on the mood you want. (this is the subjective part)

Now setting it by skin does have faults. Cheeks are a little red, men have stubble on then chins, people get sun burnt etc... I would always use my color checker nuetral grey reading if I could. Using the skin is for when you didn't shoot a grey card. I use it in aperture because it works and it's not because I was just an Aperture user and had low standards.

News flash: non-adobe photographers have just as high standards as and get and end product that is pixel for pixel just as good. There are alot of other product that perform every function Adobe does. For instance, Aperture performs every major function LR does, works just as well with PS, protects the RAW file, handles the color space etc...

I've written three blogs explaining the differences in detail if you'd like to read and comment there.
technologyformedia.com

Skin tone for White Balance Selector would be extremely useful if you had no grey card sample shot.
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AiDon

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Yes and it shouldn't be that difficult to implement as it is already there in Elements ... see: http://helpx.adobe.com/photoshop-elem...