[argyllcms] Re: Getting back to using argyllcms. Some questions.

  • From: Leonard Evens <len@xxxxxxxxxxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Fri, 28 Nov 2008 20:42:06 -0600

On Fri, 2008-11-28 at 23:42 +0100, Harald Hugenschmidt wrote:
> hi,
> i happen to have the display myself. the advanced diaplay settings  
> should be turned OFF, since they depend on enhancing local contrast.
> a monitor adapting to changing pictures is the opposite of a  
> calibrated monitor.

Can you tell me just what you did?  What I did was to use Custom, set
Brightness and Contrast, Color Controls for R, G, and B, and I chose one
of the 3 choices for Gamma.  I don't remember the details, but I did
that while trying to follow the argyll instructions for
calibrating/profiling a monitor.  I don't see anyway to just turn off
the `advanced display settings'.  I don't remember the details of what I
did, but presumably much of it I need not have done.

> I did calibration om mine and got fine enough results with a simple  
> matrix profile.
> harald hugenschmidt
> Am 28.11.2008 um 23:28 schrieb Markku Kolkka:
> > Leonard Evens kirjoitti viestissään (lähetysaika perjantai, 28.
> > marraskuuta 2008):
> >> I have a Samsung 226CW LCD monitor.  I am a bit confused about
> >> how it works.   I understand from Real World Color Management
> >> that LCDs (with rare exceptions) can only control the screen
> >> brightness and the other controls, including color controls,
> >> are done using the `video LUT'.  If I understand correctly,
> >> that term refers to a table stored in my video card.  Does the
> >> monitor have its own LUT which is used to `calibrate' the
> >> monitor?
> >
> > There's one LUT in the monitor that's set by the screen controls
> > and another in the video card that's set by the calibration data
> > from the display's ICC profile. Some high-end displays allow
> > loading the monitor LUT with the calibration data from the
> > computer but AFAIK that's only possible with proprietary
> > software in Windows or MacOS.
> >
> > -- 
> > Markku Kolkka
> > markku.kolkka@xxxxxx
> >

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