[argyllcms] Re: dispcal: Warning - RegOpenKeyEx failed with 2

  • From: lee scratchy <leescratchy@xxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Wed, 26 Dec 2007 13:08:45 +0000

Hi Graeme, 

thanks for the reply.

well x= red and y = green, no ?

I should ignore the realtime measures and only do as said with the R++ G-- B+ 
instructions ?

but sometimes B is higher than the "ideal" measure to reach and it still says 
"B+" ?!

let me rephrase "If I lower the green contrast on my DLP projector , then "y" 
increases in the ARGYLL precalibration measures ?!"

my projector has no setting for the primaries, only brightness/contrast for 

in my set up, the command line window doesn't need to be on top....only the 
calibration window but I'll play around with dispwin then


> Date: Wed, 26 Dec 2007 23:22:35 +1100
> From: graeme@xxxxxxxxxxxxx
> To: argyllcms@xxxxxxxxxxxxx
> Subject: [argyllcms] Re: dispcal: Warning - RegOpenKeyEx failed with 2
> lee scratchy wrote:
> > ok thanks Graeme  I'll try, but I think that will be the same problem all 
> > over again.
> > as long as the 2 devices are running at the same time, that will work. 
> > but whenever I will disable one, windows will apply its own defaut LUT no 
> > matter....but I'll give it a shot
> Sorry, I'm not sure what you mean. Unless you've installed some other LUT 
> control
> application, nothing should be applying another LUT over the default linear 
> one
> that will be there at startup.
> > well yeah I got it right then, but if it says to lower "y"
> I'm not sure what you mean. There are no instructions about "y",
> only instructions about R, G and B.
> > I lower the green contrast but then "y" increases ?!
> I'm not sure what you mean by "contrast". The white point adjustment
> is for displays that allow the setting of the white point by controlling
> the R, G & B maximum levels. If you're using some other type
> of control, then the instructions may not make sense.
> As you follow the instructions, the delta E should decrease.
> > I don't think I can achieve what I want with the "-p" argument.
> > basically I use it on my videoprojector, so I want it as big as possible, 
> > but
>  > still being able to read the ARGYLL precalibration infos(the 2 last lines 
> of the command-line window).
> It's better in this situation to be using some other screen for the
> dialogs, but you should be able to get close to what you want with a fiddle 
> with
> the -p parameters.
> You may not be able to cover everything except 2 lines, but
> you should be able to fill 3/4 of the screen this way.
> > atm, I have to make one precalibration pass then struggle to move the 
> > window.
> dispwin is the easiest way to experiment with this.
> > if you could offer the option to move it by hand before the calibration, 
> > that sure
>  > would be VERY handy on videoprojectors.
> > the window remains always on top anyway, so there isn't much to worry about.
> I'm not sure I can have it both staying on top, and manually resizable
> on all operating systems.
> Graeme Gill.

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