My monitor is a wide gamut NEC and re-profiled every four weeks. I’m seeking
to prepare the best profile for printing that I am able to do so using Argyll.
Right now, my profiles in general are superior to what manufacturers provide on
their websites for my specific Epson printer. The question about workflow came
up after the CHROMiX profile for the new Red River paper showed such a dramatic
difference. This was commented on by a number of photographers whose work I
know well and also the person that runs the Aardenburg print permanency test
program. The goal as you note is color accurate reproduction from the edited
image that I prepare.
Perhaps I was not clear enough in the original post regarding the ultimate
gamut properties of the printer which are greater than sRGB but less than
ProPhoto. Ultimately it comes down to color workspace but as noted, I’m using
Lightroom which has its own contraints.
Alan
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Andreas Kraushaar
Sent: Monday, July 10, 2017 3:14 PM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Optimizing Printer Profiles
Hi,
the question is your use case and hence your expectation. If you want a „sexy“
reproduction (maximini your device capabilities) you might ignore FOGRA53.
If you use a profiled monitor and expect a colour accurate reproduction (across
different output devices)….
regards
Andy Kraushaar
Register for the Fogra colour management symposium 2018 !
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Fogra Graphic Technology Research Association
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Telefon: +49 89. 431 82 - 335
Telefax: +49 89. 431 82 - 100
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Am 10.07.2017 um 21:04 schrieb Alan Goldhammer (Redacted sender "agoldhammer"
for DMARC) <dmarc-noreply@xxxxxxxxxxxxx <mailto:dmarc-noreply@xxxxxxxxxxxxx> >:
If I am understanding your comment and the one from Nikolay, you are talking
about the ultimate output to a CMYK printer. I’m talking about a consumer
inkjet printer, in my case an Epson 3880.
From: <mailto:argyllcms-bounce@xxxxxxxxxxxxx> argyllcms-bounce@xxxxxxxxxxxxx [
<mailto:argyllcms-bounce@xxxxxxxxxxxxx> mailto:argyllcms-bounce@xxxxxxxxxxxxx] ;
On Behalf Of Andreas Kraushaar
Sent: Monday, July 10, 2017 2:30 PM
To: <mailto:argyllcms@xxxxxxxxxxxxx> argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Optimizing Printer Profiles
for that reason we developed FOGRA53, a print referred large gamut exchange
colour space.
<https://www.fogra.org/en/fogra-research/wc-digital-printing/digital-printing-current-projects/consolidating-standardization/research-topics/large-gamut-exchange-space/a-large-gamut-exchange-space.html>
https://www.fogra.org/en/fogra-research/wc-digital-printing/digital-printing-current-projects/consolidating-standardization/research-topics/large-gamut-exchange-space/a-large-gamut-exchange-space.html
It is "proofable“ and can therefore be used as a universal reference (printing
the expected), where you can actually use dE76 for the difference between proof
and reproduction (which makes no sense for Adobe98 to print comping from an
image depending mapping or a general one). So if you insist on high quality
colour reproduction (contrary to "it should be nice and I will always get the
„best“ out of it“).
regards
Andy Kraushaar
Register for the Fogra colour management symposium 2018 !
Our quality, neutrality
------------------------------------------------
Dr.-Ing. Andreas Kraushaar
Dept. Prepress
Fogra Graphic Technology Research Association
Streitfeldstrasse 19
81673 Munich, Germany
Telefon: +49 89. 431 82 - 335
Telefax: +49 89. 431 82 - 100
E-mail: <mailto:kraushaar@xxxxxxxxx> kraushaar@xxxxxxxxx
Internet: <http://www.fogra.org/> www.fogra.org
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Am 10.07.2017 um 20:09 schrieb Nikolay Pokhilchenko (Redacted sender
"nikolay_po" for DMARC) < <mailto:dmarc-noreply@xxxxxxxxxxxxx>
dmarc-noreply@xxxxxxxxxxxxx>:
There is not much sense to build universal profile with AdobeRGB1998-to-paper
mapping. For most of real images your prints will be overcompressed. The
profiler is squeezing too large source gamut into somewhere not that large
print gamut. For most of images which gamut is not reaches all the AdobeRGB1998
boundaries this compression will be too high. This was my first disappointment
almost 10 years ago. I've started my color experiments in 2006 and remember
ArgyllCMS beta 0.6...
That is why I'm proposing to store the images in large enough synthetic matrix
profile color space but printing them only with individual color mapping while
using image gamut as a source.
Currently I can't say much about best softproof profile for editing purposes.
Sure it is useless to use AdobeRGB1998 source mapped profile as an instrument
for preview gamut checking while using same space for editing. It is better to
use for preview the profile without a mapping, without of gamut compression
just to check out-of-gamut colors which will take more attention.
понедельник, 10 июля 2017г., 20:48 +03:00 от Charlie
<mailto:dmarc-noreply@xxxxxxxxxxxxx> dmarc-noreply@xxxxxxxxxxxxx:
I made a profile for Red River Aurora Art Natural matte paper. From the
.gam file:
Home-made profile:
CSPACE_WHITE "96.474872 0.592788 1.026801"
GAMUT_WHITE "96.474872 0.592788 1.026801"
CSPACE_BLACK "18.378824 0.927170 1.620395"
GAMUT_BLACK "18.378824 0.927170 1.620395"
Red River's profile:
GAMUT_CENTER "50.000000 0.000000 0.000000"
CSPACE_WHITE "96.858887 0.658193 3.065480"
GAMUT_WHITE "96.858887 0.658193 3.065480"
CSPACE_BLACK "2.839341 0.454370 0.545357"
GAMUT_BLACK "2.842807 0.454377 0.545449"
I used the ColorMunki Photo device and these commands:
targen -v -d2 -G -g51 -e8 -f638 -w -W RRAuroraNat
colprof -v -qh -SAdobeRGB1998.icc -cmt -dpp -P -DRRAuroraNat RRAuroraNat
The result has peak error 1.72, avg. error 0.34, RMS 0.4.
