a?
>
> Darsh.
>
> -Original Message-
> From: Hal V. Engel [mailto:[EMAIL PROTECTED]
> Sent: Friday, July 08, 2005 8:32 AM
> To: Darshan Pawaskar
> Subject: Re: [Lcms-user] printer profiling
>
> On Thursday 07 July 2005 02:33 am, [EMAIL PROTECTED] wrote:
> > I a
Gerhard Fuernkranz wrote:
Regarding calibration, I've no evidence whether the spectra found on an
IT8 target are sufficient to establish the mapping. If not, then maybe
additional targets with inkjet spectra might be required.
A reference that only has three independent channels (ie. Photograp
Graeme Gill schrieb:
Some comments spring to mind:
This probably won't work for narrow band scanner sensitivities.
Thats' what I suspect as well.
How do you calibrate your spectral scanner ?
What maths is needed to extract spectral info from RGB+filter output ?
I was basicall
Gerhard Fuernkranz wrote:
Btw, I'm actually wondering whether well-known spectral imaging
approaches might also work for turning a scanner into a more
colorimetric device:
Any comments or objections?
Some comments spring to mind:
This probably won't work for narrow band scanner se
Graeme Gill schrieb:
Ahhh, but metamerism still exists! Metamerism due to different ink
will be elminated but there may still be metamerism which causes the
scanner to think that two colors are very similar when they are
actually not.
This can be one issue. Another more certain one when pro
Ideas from Wolf Faust, who is not on the lcms-user list so he can't
respond there.
Bob
-- Forwarded message --
Date: Tue, 21 Jun 2005 09:22:04 +0200
From: Wolf Faust <[EMAIL PROTECTED]>
To: Bob Friesenhahn <[EMAIL PROTECTED]>
Subject: Re: [Lcms-user] Prin
Hal V Engel wrote:
You are probably correct about using something better than an IT8.7 target.
But I don't know of any calibrated color chart that is widely available. But
then again I have not looked since all of the profiling software that I am
aware of uses the IT8.7 for calibration. Are
On Monday 20 June 2005 06:05 pm, Bob Friesenhahn wrote:
> On Mon, 20 Jun 2005, Hal V Engel wrote:
> >> You are saying that your scanner acts like a spectrophotometer? I
> >> find it difficult to believe that using LEDs in the scanner causes it
> >> to not suffer from metamerism.
> >
> > No I am sa
Bob Friesenhahn wrote:
On Mon, 20 Jun 2005, Hal V Engel wrote:
No I am saying that IF the amount and direction of the color shift
caused by metamerism are the same for both the IT8.7 calibration
>> chart and the printer target then metamerism in no longer a
>> significant issue. LED scanners
On Mon, 20 Jun 2005, Hal V Engel wrote:
You are saying that your scanner acts like a spectrophotometer? I
find it difficult to believe that using LEDs in the scanner causes it
to not suffer from metamerism.
No I am saying that IF the amount and direction of the color shift caused by
metameris
On Monday 20 June 2005 04:58 pm, Graeme Gill wrote:
> Jan-Peter Homann wrote:
> > Hello list (cc. Wolf Faust)
> > If some people have succes by profilinig their printer via scanners.
> > We should get even better results, if somebody produce an additional
> > IT-8 chart as inkjet-print, measure thi
On Monday 20 June 2005 04:34 pm, Bob Friesenhahn wrote:
> On Mon, 20 Jun 2005, Hal V Engel wrote:
> > Having ink specific IT8.7 charts would make the creation of printer
> > profiles using a scanner significantly more accurate then when using
> > generic IT8.7 charts since this would eliminate the
Jan-Peter Homann wrote:
Hello list (cc. Wolf Faust)
If some people have succes by profilinig their printer via scanners.
We should get even better results, if somebody produce an additional
IT-8 chart as inkjet-print, measure this with a spectrophotometer and
sells this chart incl. characteriza
On Mon, 20 Jun 2005, Hal V Engel wrote:
Having ink specific IT8.7 charts would make the creation of printer profiles
using a scanner significantly more accurate then when using generic IT8.7
charts since this would eliminate the metamerism problem. I would also
You are saying that your scanner
On Monday 20 June 2005 09:50 am, Jan-Peter Homann wrote:
> Hello list (cc. Wolf Faust)
> If some people have succes by profilinig their printer via scanners.
> We should get even better results, if somebody produce an additional
> IT-8 chart as inkjet-print, measure this with a spectrophotometer an
Hello list (cc. Wolf Faust)
If some people have succes by profilinig their printer via scanners.
We should get even better results, if somebody produce an additional
IT-8 chart as inkjet-print, measure this with a spectrophotometer and
sells this chart incl. characterization-data like a photogra
On Monday 25 April 2005 01:21 pm, Riccardo Santini wrote:
> I have profiled the scanner, I will profile the monitor with the x-rite
> device and I'd like to profile the printer too. Do anyone know any software
> not too expensive that help to profile the printer? Thanks
> Riccardo
If you are runni
Riccardo Santini schrieb:
I have profiled the scanner, I will profile the monitor with the
x-rite device and I'd like to profile the printer too. Do anyone know
any software not too expensive that help to profile the printer?
Try http://www.argyllcms.com/
(Btw, I hope your X-Rite device is not on
I have profiled the scanner, I will profile the monitor with the x-rite
device and I'd like to profile the printer too. Do anyone know any software not
too expensive that help to profile the printer?
Thanks
Riccardo
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