[argyllcms] Re: "Washed" / low contrast colors on calibrated display
- From: "Frédéric Crozat" <fred@xxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 7 Jan 2008 21:58:19 +0100
On Jan 7, 2008 1:46 PM, Frédéric Crozat <fred@xxxxxxxxxx> wrote:
> On Jan 7, 2008 12:46 PM, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote:
> > Frédéric Crozat wrote:
> > > Ok, I guess I'll stop playing with trying to change whitepoint and use
> > > one of those "predefined", even if their
> > > value look crazy.
> >
> > Pick the one closest to D65 if you are targeting sRGB.
>
> Now, I just need to discover which one is supposed to be closer to
> D65. I'll try to re-run dispcal -E
Hmm, just wondering : I found on lcms-user a post from Hal Engel (
http://www.mail-archive.com/lcms-user@xxxxxxxxxxxxxxxxxxxxx/msg02180.html
) explaining that Huey ambiant light
sensor is always reporting 5000K as color temperature (it seems to
confirm my findings).
Graeme, are you aware of this problem ? It might be better to not
output any value instead of a constantly broken value.
I was also wondering the "real" difference between huey and hueyPro :
Pantone is saying they "upgrade" the sensor firmware but I have some
doubts about that and I guess that is their way of "selling" a pure
software upgrade (which is not needed for argyllcms luky users ..).
>
> > > In that case, you should drop it from dispcal manual too ;)
> >
> > I can't see it in the current documentation:
> > <http://www.argyllcms.com/doc7/dispcal.html>
>
> My bad, I mixed up with "profile" documentation which talks about -qu.
> And then, I checked dispcal code to find what
> were the differences between high and ultra high.
>
> > > I also tried adding "-v" and I must confess I found the output
> > > extremely interesting. I'm wondering if it wouldn't be better to push
> > > the "iteration x on y in progress" and "patch x on y" in the default
> > > message (when -v is not set), it would give some progress output to
> > > user.
> >
> > It's hard to judge, but I thought the default behaviour is "busy" enough
> > as it is, and if you want more it's simple to use "-v" or "-v2".
>
> currently, default behaviour for calibration is just "calibrating
> device". That is why I suggested adding some progress report.
>
> --
> Frederic Crozat
>
--
Frederic Crozat
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