Re: Proof of RGB-Data (was CM 2006...)
by Jan-Peter Homann
Jan-Peter wrote
>>(I don´t now any serious colormanagement expert, who says proofing of
>>RGB-data is yet possible)
>
Olaf Drümmer wrote:
> what about PDF/X-3? Five Digitalproof-Forum events have proven that the
> majority of proofing systems can do this.
>
> Olaf
Hello Olaf, hello List
The PDF/X-3 approach for proofing simulates the gamut of the
output-Intent in combination with gamut-mapping of the output-intent and
the rendering intent defined for the RGB-data.
The ISO-standard PDF/X-3 gives no definition, if the user can expect
usable results, if he uses instead of the output-intent a different profile.
The main problem are the different Lab->CMYK conversion strategies from
the profile vendores for:
- gamutmapping of saturated colors
- lightness compression
- greybalance in conjunction to the paperwhite
If we want to have a proof of RGB-data, this must be embedded in a
workflow definition, where the user can expect predictable results if
the RGB-data is converted to different output conditions.
The ICC-specs (incl. the implementation in the Adobe PDF-specs and the
ISO-standard PDF/X-3) are far away to be a reliable and robust framework
for fully automated colormanagement-workflows.
This concerns especially colors and workflows, which are touched by the
different Lab-CMYK conversion strategies:
- very saturated colors
- overal gradation (lightnes compression)
- greybalance, if RGB-data is converted to output condition with
different paperwhites
- numeric control of corporate colors and product-colors in the RGB-file
This are some points, which have to be fixed first in the ICC-specs,
then in the Adobe PDF-specs and after this in the ISO-standard PDF/X-3,
if colormanagement with RGB-data should be predictable, robust and reliable
:-) Jan-Peter
--
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homann colormanagement ------ fon/fax +49 30 611 075 18
Jan-Peter Homann ------------- mobile +49 171 54 70 358
Kastanienallee 71 ------- http://www.colormanagement.de
10435 Berlin --------- mailto:homann@colormanagement.de
--
--
homann colormanagement ------ fon/fax +49 30 611 075 18
Jan-Peter Homann ------------- mobile +49 171 54 70 358
Kastanienallee 71 ------- http://www.colormanagement.de
10435 Berlin --------- mailto:homann@colormanagement.de
18 years, 5 months
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[ANN] ECI supporting partner for "PDF-FORUM for Print Production" in Miami/Florida
by Admin eci.org
Dear subscribers,
still looking for a justification to go to Florida in the coming weeks
to escape the unpleasant weather currently to be endured in northern
regions? (Not only) Then this announcement may be of interest to you.
Stay away from the crocodiles though.
Olaf Druemmer
Co-admin of the [ECI-EN] mailing list
ECI supporting partner for "PDF-FORUM for Print Production" in Miami/Florida
During the two day "PDF-FORUM for Print Production" conference, which
takes place February 2-3, 2006, in conjunction with the XPLOR "Global
Document Exchange" conference and the "Graphics of the Americas"
exhibition at the Miami Beach Convention Center in Florida, industry
experts, advanced users and leading developers from the US and Europe
will share their knowledge and experience about state of the art PDF
applications and future developments for print production.
Before and after the main conference, the attendees will have the
opportunity to participate at specialized tutorials and get valuable in
depth knowledge from insiders.
ECI members Florian Süssl and Peter Kleinheider will play an active role
in the tutorials as well as the conference, covering topics like PDF/X
and device independent color workflows. ECI is a supporting partner of
the PDF-FORUM. That's why ECI members can get the special members price
(a $250 discount) when using the promo code "ECI060" during online
registration.
More information can be found at: http://www.pdf-forum.info/
Note: Occasionally ECI will notify subscribers to this mailing list
about industry events related to color management, PDF/X and printing
standardization. Unless otherwise noted though, ECI is not responsible
for the events mentioned, provides such notifications for information
only and cannot guarantee the accuracy of the information offered.
If you would like to share information about such events over this
mailing list, please contact the administrator at <admin(a)eci.org> - it
is not allowed for subscribers this mailing list to send such
announcements themselves.
18 years, 5 months
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[ANN] CM 2006 - Color Management Conference in Copenhagen, January 19-20, 2006
by Olaf Drümmer
CM 2006 - Color Management Conference in Copenhagen, January 19-20, 2006
In January 2006 there is an excellent opportunity to meet some of the
top leading experts from Europe and the USA within digital photo, color
management and standardization of printing - at "CM 2006" they will
share their knowledge and take part in presentations, panel discussions
and digital photo shootout. "CM 2006" focuses on color management
throughout the value chain:
18 years, 5 months
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RE: Re(2): [ECI-EN] [ANN] CM 2006 - Color Management Conferencein Copenhagen, January 19-20, 2006
by Simon Murray
Funny how I found an English PDF!
Simon Murray - simon.murray(a)argos.co.uk
Argos Print Production
Tel: 01908 600611
Fax: 01908 204315
Mob: 07957 485764
-----Original Message-----
From: eci-en-admin(a)lists.transmedia.de [mailto:eci-en-admin@lists.transmedia.de] On Behalf Of Paul Sherfield
Sent: 05 December 2005 10:19
To: eci-en(a)lists.transmedia.de
Subject: Re: Re(2): [ECI-EN] [ANN] CM 2006 - Color Management Conferencein Copenhagen, January 19-20, 2006
Hi again Olaf
I had found the program in English on the web link page, but the download
PDF is in Danish.
Thanks for the the info on the hotel.
Also, at what level of expertise is this conference aimed. In referring to
hands-on monitor profiling and CS2 colour settings it gives the impression
it is aimed at beginners/intermediate users?
Regards
Paul Sherfield
The Missing Horse Consultancy Ltd
Telephone: 01442 871752
Mobile: 07899 906385
http://www.missinghorsecons.co.uk
Apple Solutions Expert-Print & Publishing
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