[argyllcms] Re: dispcal: Warning - RegOpenKeyEx failed with 2
- From: lee scratchy <leescratchy@xxxxxxxxxxx>
- To: <argyllcms@xxxxxxxxxxxxx>
- Date: Thu, 27 Dec 2007 08:53:22 +0000
ok well, here's the best I could get :
Adjust R,G & B gain to get target x,y. Press space when done.
Target B 36.52, x 0.3128, y 0.3291
/ Current B 36.76, x 0.3125, y 0.3364 DE 5.5 R+ G- B++
I've adjusted the blue contrast of my DLP projector to get the "B" this close
to the target.
my figures are actually pretty close, yet it wants me to change them again and
add a lot of blue ?!
could you also please add a fullscreen mode for videoprojectors so the
calibration window borders don't interfere in the process ?
and about my LUT problem, I guess it's hopeless considering both displays
become display #1 when they are the only one enabled ?
Thanks!
-Maxime
> Date: Thu, 27 Dec 2007 12:04:18 +1100
> From: graeme@xxxxxxxxxxxxx
> To: argyllcms@xxxxxxxxxxxxx
> Subject: [argyllcms] Re: dispcal: Warning - RegOpenKeyEx failed with 2
>
> lee scratchy wrote:
> > well x= red and y = green, no ?
>
> No.
>
> > I should ignore the realtime measures and only do as said with the R++ G--
> > B+ instructions ?
>
> That's the best way to proceed. You should see the DE decline as you get
> closer
> to the target white.
>
> > but sometimes B is higher than the "ideal" measure to reach and it still
> > says "B+" ?!
>
> How do you known that ?
>
> > let me rephrase "If I lower the green contrast on my DLP projector , then
> > "y"
> > increases in the ARGYLL precalibration measures ?!"
>
> As so it might. x = X/(X+Y+Z), y = Y/(X+Y+Z) where X,Y, and Z are the
> measured CIE standard observer values.
>
> > my projector has no setting for the primaries, only brightness/contrast for
> > R/G/B
>
> Hmm. Awkward. You need to get some rough idea what brightness and contrast
> actually
> do. It could be that if it's a CRT projector that contrast sets the maximum
> level
> (the gain), and brightness sets the offset, in which case you should
> probably set the black point first (using R/G/B brightness), and then
> white point (using R/G/B contrast). You may need to go around
> a couple of times. But if it's an LCD or the controls don't operate normally,
> you'll have to figure it out for your self.
>
> Graeme Gill.
>
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