[Openicc] CUPS Color Management under Linux gets into distros
Till Kamppeter
till.kamppeter at gmail.com
Tue Feb 8 08:33:57 PST 2011
[ This mail is posted to the OpenICC mailing list, Please always reply
with "Reply to all" so that it gets to the list and all CCs. Thanks. ]
Hi,
we will have some color management in a distro soon. I have added Koji
Otani's Poppler-based pdftoraster filter to the CUPS package for Ubuntu
Natty (release end of April, currently available as the development
branch of Ubuntu) and Debian unstable. This pdftoraster filter replaces
the one shipped with Ghostscript and in addition to being much faster
and more reliable with complex PDFs it implements CUPS' ICC profile
support as described in the documentation:
http://www.cups.org/documentation.php/doc-1.4/spec-ppd.html#cupsICCProfile
http://www.cups.org/documentation.php/doc-1.4/spec-raster.html#TABLE2
http://www.cups.org/documentation.php/doc-1.4/raster-driver.html#COLOR
Otani-san, am I correct that with this pdftoraster we have ICC-profile
support for CUPS Raster drivers as described in the CUPS doc? How do I
supply a rendering intent? Are there any additional non-PPD options to
supply to print jobs?
Color management experts from OpenICC and driver developers, please test
this feature and report your experience here. You could ship ICC
profiles for installation in /usr/share/cups/profile/ to improve your
printer's output quality.
Color management experts from OpenICC, WDYT about this color management
effort? Is this already a step forward? Is it at least the correct
effort for consumer-level printing? What needs to be added to support
pro and prosumer printing?
For testing you need the PDF printing workflow:
https://www.linuxfoundation.org/collaborate/workgroups/openprinting/pdf_as_standard_print_job_format
This is already implemented in Ubuntu and Debian and the newest
snapshots of Natty and unstable contain the new pdftoraster. Do a
complete system update ("sudo apt-get update; sudo apt-get
dist-upgrade") after having booted or installed the system from a daily
live CD or Alpha version. You must have the package cups of version 1.4.5-3.
On other distributions you have to install the PDF workflow by compiling
from source, following the instructions on the page linked above.
Please report your experience here and discuss.
Patches are also welcome to make the pdftoraster of Ghostscript
implementing CUPS' ICC profile support.
Till
P. S.: In April there will be also a session on the OpenPrinting Summit
about Color Management for printing with Linux.
More information about the openicc
mailing list