Attached is a style that illustrates how to use 'color zones' to do something 
similar to the camera's JPEG processing. It's a little more subtle than your 
JPEG (which I think looks better) but it should be pretty obvious how to make 
it more dramatic by pulling the curve around.

On 2014-01-31 [email protected] wrote:
> On 2014-01-31 [email protected] wrote:
> > 
> > I don't think you have anything wrong; merely that the developers of Dt
> > don't know exactly what the JPEG engine inside of our cameras does.
> 
> Yes, this, and more so. If you look closely, you'll notice that it's not 
> really a white balance issue at all, there isn't a consistent difference in 
> color cast over the whole image. It's primarily the skin tones (or anything 
> the camera processing engine thinks *might* be a skin tone) that have their 
> red levels "enhanced"... this is something the camera applies to the JPEG on 
> top of the plain old white balancing, which is not replicated by darktable, 
> hence the difference in appearance. If you don't believe me, look at the 
> values of a sample of the white paper object in the bottom-left corner for 
> both images.
> 
> Before I started processing raw files, I never understood why digital cameras 
> seemed to have so much trouble correctly reproducing certain shades of 
> orange, etc, without shifting towards magenta. I now realize that this is 
> because camera makers are paranoid about producing "un-pleasing" skin tones, 
> and do a lot of "magic" (and guessing about what might be an "off" skin tone) 
> to keep that from happening. If you try to make the skin tones "pleasing" 
> with white balance alone, the rest of the scene is thrown off. If you want to 
> reproduce this effect somewhat, you can do it with the 'color zones' module, 
> although exactly replicating the magic applied to the JPEG is tricky. There 
> may be settings in your camera that will produce a more neutral coloration, 
> closer to darktable's default ouput, but I've found that my Olympus XZ-1 does 
> this "enhancement" to JPEGs even on 'natural' setting.
> 
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Attachment: Olympus-skin-enhance.dtstyle
Description: Binary data

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