Re: On the use of wide-gamut RGB working spaces
Re: On the use of wide-gamut RGB working spaces
- Subject: Re: On the use of wide-gamut RGB working spaces
- From: "Fleisher, Ken" <email@hidden>
- Date: Thu, 09 Oct 2008 07:33:52 -0400
- Thread-topic: On the use of wide-gamut RGB working spaces
On 10/9/08 7:30 AM, "Klaus Karcher" <email@hidden> wrote:
> take an arbitrary skin tone in 16bit lab,
> convert it once to sRGB and once to prophotoRGB
>
> make an curve adjustment layer in both rgb images
>
> command-click onto the color when the curve window is open to set a new
> point.
>
> Move the new point on the curve one step upwards by using the up-key on
> the keyboard (this is the minimal change Photoshop's UI permits)
>
> compare the results:
>
> the change in the Prophoto image is much stronger than in the sRGB image
> -- *too* strong in many cases. A workaround is to reduce the opacity of
> the adjustment layer, but it's impractical.
Yes, I've wanted finer control in the UI for a long time. It's a shame that
we can work in 16-bit color but we can't address that level of detail in the
UI. The problem you described above is something I run into all the time and
is an excellent reason to limit the range of your color gamut to the minimum
necessary (plus a bit of head room, of course).
--
Ken Fleisher
Photographer
Imaging & Visual Services
National Gallery of Art
Washington, D.C.
Phone: (202) 712-7471
email@hidden
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