No announcement yet.

Correcting skintone in ACR

  • Filter
  • Time
  • Show
Clear All
new posts

  • Correcting skintone in ACR

    Hello all,
    I know there are a lot of great skin tone correcting techniques for photoshop using CMYK values but I do a lot of batch editing and I was wondering if there is anyway that the RGB color readouts of a point on an image in Adobe Camera Raw could help me out in trying to evaluate correct skin tone. I read this article that really helps me out in the direction that I need but the problem is that I'm using ACR which only reads out the RGB values in the sRGB color space rather than the percentage values of Lightroom's Melissa RGB color space like the article shows. Does anyone have any RGB relations that would get me closer to getting more realistic skintones?

  • #2
    Re: Correcting skintone in ACR

    I would recommend that you set the eyedropper in the Info window to display LAB instead of RGB or CMYK. Instaed of 3 (RGB) or 4 (CMYK) numbers to look at, you only have 2 in LAB - the A and B channels. There is a very simple relationship that you learn to spot immediately. Skin means A and B are always both positive. There is a reliable relationship between those two numbers. When the value of A exceeds B, the skin starts turning magenta. Normal skin usuallu has B anywhere from equal to A up to about 50% greater than A. And as A and B approach zero the skin gets paler with 0,0 being the neutral point (white or gray depending on the Brightness value in the L channel).
    The numbers never lie.
    Often you only need to correct the white balance for everything to fall into line. However very often cameras are over sensitive to red and people skin can often be more red / magenta than you would like. When the white balance is correct but you still have magenta or other cast in the skin, the HSL Tab in LR / ACR will very easily fix it.
    Cheers, Murray


    • #3
      Re: Correcting skintone in ACR

      Thanks for your reply Murray!
      Since I often color correct hundreds of images at a time I am not going to use photoshop in the process, sadly :/. Even though I do use a gray card at the shoot to set the white balance, the skin tones usually don't look very lively and appealing to me and I end up tweaking the WB and saturation in order to get a more realistic and desirable look. Rarely, though, I will look into the HSL sliders and boost some orange saturation if needed.


      • #4
        Re: Correcting skintone in ACR

        You don't need to mess with CMYK (which isn't available in ACR).

        Here's a video on correcting skin tones without having to resort to CMYK:

        Low Rez (YouTube)

        High Rez


        • #5
          Re: Correcting skintone in ACR


          • #6
            Re: Correcting skintone in ACR

            That's really helpful Andrew, thanks
            I guess I just need to start using LR for my batch editing I suppose. And I've always heard of the LAB color space but I've never thought of using it for work on photos. How I'm understanding it is basically like the WB sliders in ACR but with brightness included (L)?


            • #7
              Re: Correcting skintone in ACR

              Originally posted by teajae View Post
              How I'm understanding it is basically like the WB sliders in ACR but with brightness included (L)?
              Kind of yes. You can see the various axis's that do correspond to Lab (Tint/Temp).


              Related Topics


              • jayk2
                Skin Tone color corrections, CYMK or RGB?
                by jayk2
                Hello all,

                I'm very interested in skin tone correction and have a question. Almost every tutorial and book says to edit skin tones using cymk and basically make sure the yellow reads 3-5% higher then Magenta. I work in Adobe RGB and wondering if that percentage rule applies only to CYMK?...
                02-11-2005, 11:49 AM
              • nikeskate875
                CMYK skin tone problems/help
                by nikeskate875
                Hi everyone,

                I've been having some troubles with getting the skin tones to my liking lately. I just had my monitor color calibrated and I'm trying to get better at improving on fixing skin tones. I've been using the CMYK equation (I used this article for reference), I use this method...
                01-12-2011, 02:06 PM
              • annacarina
                RGB values for average caucasian children
                by annacarina
                hi. Could anyone share with me some RGB values for avarege caucasian children. excuse me for my poor english. thanks in advance
                05-18-2006, 05:40 PM
              • bkravchenko
                Tan Skin Retouching
                by bkravchenko
                Anyone can give me tips on how to create a bronze skin tone like this. More specifically looking to learn how to do this in selective color.

                Some like to sample a color from another image and use levels to match the RGB values on a sampled point from working image. That never worked...
                01-10-2009, 11:16 PM
              • kkamin
                CMYK skin tone recipe problems
                by kkamin
                I've learned a good place to start for Caucasian skin tones is:
                C: between 1/3 to 1/5 of Yellow
                M: Magenta and Yellow are close, yet
                Y: Yellow is higher than magenta
                K: 0


                1. I shoot a lot of low key portraits where I don't have a diffused...
                12-08-2009, 06:10 PM