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Skin Colors in LR

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Although I have LR I don't use it to often and I use ACR all the time. In ACR 4.2x and up there is 3 adjustments, Hue, Sat & Lum. and the same should be true for LR 1.3.1.

 

No - I have LR 1.3.1. Unless there's some sneaky way of unlocking Luminance, it doesn't have it......at least for the M8

 

Sandy

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Here's another LR calibration:

 

Shadow Tint 0

 

Red Hue +1

Red Saturation -2

 

Green Hue +9

Green Saturation +80

 

Blue Hue +26

Blue Saturation -63

 

Hi Sandy, I have LR but only use ACR, can the above same value apply to ACR?

 

Albert

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Hi Sandy, I have LR but only use ACR, can the above same value apply to ACR?

 

Albert

 

Yes, they should be identical....

 

Sandy

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No - I have LR 1.3.1. Unless there's some sneaky way of unlocking Luminance, it doesn't have it......

 

Sandy

Yes you are right. I was/am thinking about the HSL/Color/Grayscale panel.

Couldn't you adjust luminosity there and save it as a Preset?

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Yes you are right. I was/am thinking about the HSL/Color/Grayscale panel.

Couldn't you adjust luminosity there and save it as a Preset?

 

Yes, you probably could. I haven't done so so far, because I set out to explore camera calibration. But actually, adjusting in the HSL/Color/Grayscale panel is no different what I'm doing in Aperture. And when I started this I thought I was going to do something simple.....

 

Sandy

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No - I have LR 1.3.1. Unless there's some sneaky way of unlocking Luminance, it doesn't have it......at least for the M8

 

Sandy,

Just click on the HSL button, then you get 4 separate buttons, "Hue, Saturation, Luminance and ALL". Then click on Luminance.

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Sandy,

Just click on the HSL button, then you get 4 separate buttons, "Hue, Saturation, Luminance and ALL". Then click on Luminance.

 

Not in the "Camera Calibration" tab, unfortunately........

 

Sandy

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Yes, you probably could. I haven't done so so far, because I set out to explore camera calibration. But actually, adjusting in the HSL/Color/Grayscale panel is no different what I'm doing in Aperture. And when I started this I thought I was going to do something simple.....

 

Sandy

And isn't always like that.

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Here is another set of photos,the first uses my M8 custom preset and the second uses Sandy's. The lipstick color is wrong on Sandy's and right on my custom preset.

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Ok, I've now put a lot more work into this, and come up with a significantly better calibration methodology - my previous attempts didn't really take the gamma of the working space into account properly. I now have two versions, one a "theoretically calibrated" version, and one a "practically calibrated" version. The difference between these two is in the brightness setting in LR - as a default, LR loads with a brightness of 50, and contrast of 25. The problem with brightness is that it's (unlike exposure and contrast) a non-linear setting, so it matters quite a bit what you set it to.

 

In theory, you should calibrate with brightness 0. This gives the following calibration:

 

Shadow Tint 7

 

Red Hue +3

Red Saturation +30

 

Green Hue +3

Green Saturation +51

 

Blue Hue +19

Blue Saturation 0

 

However, at the default brightness of 50, the previous calibration gives reds that are way out (reds are a well known Adobe problem, btw). One solution is to always back off the brightness, but that starts to "go against the grain" of LR - you start to end having to do a lot of tweaking to the exposure and contrast setting to get a good end-result

 

A calibration at a brightness of 50, which keeps LR happier, and lets you just import stuff is:

 

Shadow Tint 2

 

Red Hue -2

Red Saturation 37

 

Green Hue -18

Green Saturation +51

 

Blue Hue +23

Blue Saturation -15

 

I'll redo the Aperture HSL settings once I have time

 

They say nothing is wasted if you learn something new.....

 

Sandy

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Sandy,

 

i hate to tell you this but those last setting produce awful colors. Here is the previous picture with your new settings followed by my custom M8 settings:

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All other settings were default LR settings including brightness and contrast. I used the second set of settings you posted above.

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Could you try the first set, with brightness down to zero? You'll have to adjust exposure and contrast though.....

 

Sandy

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Alright, for anyone still following this saga, yet another version - this one preserves hue and saturation in the primaries, at the LR default brightness setting...........

 

Shadow Tint 7

 

Red Hue +2

Red Saturation +2

 

Green Hue -6

Green Saturation +38

 

Blue Hue +23

Blue Saturation -28

 

Sandy

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For whatever it's worth (and probably not much if you like Lightroom / ACR) I have just finished playing with the new C1 v4 (release--NOT beta) and they really, really nailed the M8 colour there with the new UV/IR profile.

 

Skin tones, especially, are very good given the right WB. YMMV.

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Jamie,

 

C4 is on my list - I've played with it briefly, but it seems that there are very few "user level" controls for color available; either you like what the supplied profiles do, or you have to go to a lot of trouble to roll your own ICC profiles. A process which is not for the faint hearted(!)

 

BTW, having gotten involved with this process, I'm even more impressed than ever with your profiles.....

 

Sandy

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I agree Jamie, the C1 V4 canned profiles work well. Coupled with the other controls, it does give flexibility to produce fine images easily. The option of your 3 profiles from before gives alternatives if needed. Agree with Sandy that cannot adjust colours individually as in LR/ACR, but then the ICC profile is doing this 'under the bonnet(hood)' in a more sophisticated manner. I'd like to find a way to be able to specify the UV/IR profile as my default instead of having to specify by selecting for every image....

 

The ability to save presets for each of the tools/controls in C1 V4 is a huge improvement over the Beta version.

 

I will get around to trying these new settings Sandy, just have lots of other things on my plate at the moment. So do appreciate this effort you are expending.

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Maybe I missed it but are you guys using Thomas Fors ACR Calibrate script in conjunction with the Gretag Macbeth color checker to get your settings. I have it and have had mediocre success so far but I believe it is because of the lighting I am using. I am going to try it with North natural window light and see what is up with that.

 

good thread so far

 

Woody

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