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basic help in adjusting for skin tones

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Old 11-19-2003, 01:48 PM
Duv's Avatar
Duv Duv is offline
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Join Date: Oct 2003
Location: Nanaimo, British Columbia
Posts: 1,213
Hi Micah

There is a very large range of tones in African Americans but as a starting point try the following:

Asian: Start with average Caucasian RGB 213/172/129 CMYK 8%/35%/45%/0% For Asian such add yellow.

African American: RGB 136/105/75 CMYK 27%/50%/63%/21%

Generally, find the cyan value, magenta should be double that of cyan, and yellow should be around one fifth to one third higher than magenta.

Again, I would strongly suggest you pick up a copy of Katrin Eismann's Photoshop Restoration & Retouching for a much more in depth discussion.

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Old 12-03-2003, 11:51 AM
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gyrgrls gyrgrls is offline
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Join Date: Feb 2002
Location: Eureka, Calif
Posts: 9
Re: basic help in adjusting for skin tones

Originally posted by micah

when I go to take the slightest green out, I see the magenta go in and I think it looks too magenta. When I take a bit of blue out, I see the yellow go in and it looks too blue.
It also happens with the wedding dress. In the shade the dress takes on a blueish cast, but when I take the blue out, I get too much yellow it seems. I use the white point picker when I can but oftentimes, the images just gets way too contrasty or blown out.
Can you recommend a basic tutorial or give me some advice on how to assess a proper skin tone and adjust for it?
Use the channel mixer for more accurate
color balancing / tweaking.

Also, if you find a color cast spilling into a gray or
pale blue area, when tweaking flesh tones,
just drop an adjustment layer over a background
copy, or use a layer mask. One way I build a
mask, for an alpha channel, is:
Select the magic wand tool, set the tolerance
quite low, say around 7 to 10%; make sure
'contiguous' is checked, and 'use all layers'
is unchecked; then hold down the shift key while
repeatedly clicking in the area I want to mask or select.

Also - the best way (I find) to set the white and
black points is manually!
I use the levels dialog, and carefully look at
all four histograms (R,G,B, and Composite),
and then drag the input sliders in (while in RGB).

You can always try a Ctrl+Shift+B to do a
"auto color" (photoshop 7 or higher), then
toggle back and forth with the Ctrl+Z "undo-redo", but
you will usually get better results with global color
correction by doing it manually in the curves
and levels, then semi-globally with the channel
mixer, and maybe an adjustment layer or two,
then specific color correction with brushes
and layer masks, etc.
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Old 12-08-2003, 09:16 AM
john_opitz john_opitz is offline
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Join Date: Sep 2001
Location: Dallas/Ft.Worth,Texas
Posts: 230
Some information that might be helpful to you.

You will need to register.

click here

and here.

click here

This one is good for enhancing skin tones as well.

click here

Also a guide in correcting skin tones.

For caucasians: cyan value 1/5 to 1/3 of the magenta(depending how bronzed), the magenta and yellow equal. The yellow10 to 15 points higher in hispanics and asians. Remenbering when measuring these values: measure in normal lighting, not where the fleshtone is in shadow or where there is make-up. The above values can be read in rgb as well. As I can do both in rgb and cmyk.
I, at times, (most of the time) work in cmyk (even for rgb output) for fleshtones. the reason being cmyk has shorter ranges than rgb (and for targeted sharpening). Meaning, target curving is more precise (depending on the conditions). One caution: when you do conversions. You have to know what is happening to the image. RGB>CMYK or any kind of conversion for that matter. There are pros and cons in working in rgb,cmyk and LAB for that matter. Knowing and taking the advantage of these color spaces in the whole key. For whatever your output is.
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Old 12-09-2003, 10:10 AM
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venivedi venivedi is offline
Join Date: Oct 2002
Location: Seoul
Posts: 93
Thanks for the links, John...also I need your guide.

p.s. Already it's 2 a.m. after I've cleaned up my sister's restaurant.
By the way, there's a lot of bad flu about. I wonder what do you folks do to keep in the pink.
Take care.
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