Domain: littlecms.com
Stories and comments across the archive that link to littlecms.com.
Comments · 13
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Ufie and CMYK
How about this:
http://ars.userfriendly.org/cartoons/?id=20060430That's a bit vague. However, it was actually being followed up on before that strip even hit the web. And among other pertinent things, Little CMS integration into Inkscape started shortly after Libre Graphics Meeting not too many weeks ago. Illiad hasn't covered any of the features he'd actually like for his workflow, but he has been asked.
As soon as the next release of Inkscape is done (starting any day now), then more CMS support will go in and also hit the UI. (So anyone who might want to use this, be sure to drop a note or some such).
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Re:Google is the answer, my brother
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I just set up such scanner at my dad's linux box
He had bought another model of that series (3170). But anyway yours should be similar if not the same setup. I used:
-SuSE 9.0 (distro does not matter)
-Gimp 1.2
- a matching sane along with xscanimage (though now used)
-iscan package installed and linked as a gimp plugin, from epkowa: http://www.epkowa.co.jp/english/linux_e/index.html
-littlecms library from:
http://www.littlecms.com/
-gimp color management plugins from:
http://www.freecolormanagement.com/color/gimp.html
(do not give a damn for the "alpha" status) ... but make sure to copy all icc profiles into /usr/lib/color (hardcoded in main.c ... I guess you can name some files to: scanner.icm, printer.icm and display.icm (if you have according inputs) ... but I way able to install some scanner icm's under different names and was able to select them anyway
- grab some scanner drivers for Windows from the Epson site. The EXE Files are self extracting Zipe-Archives, so you can simple do an unzip .exe
- look for the *.ic_ files
- install msexpand (package mscompress) from your distro (or from here: ftp://ftp.penguin.cz/pub/users/mhi/mscompress
- then do an expand .ic_ and rename the result to
- alternative
+ if no *.ic_ files found, look for *.cab files
+ install cabextract from your distro (look here http://freshmeat.net/projects/cabextract/
+ look for *.icm file
- the file program should tell you that the icm-file is a:
# file Per317_r.icm
Per317_r.icm: Kodak Color Management System, ICC Profile
First I installed a icm for the scanner for prints mode and a seperate icm file for slides/negatives mode. Per317_r.icm for prints (r=reflective) and
Mine were Per317_t.icm (t=transparent) -- that made the most sense.
If you have access to a Windows Box or do run wine you can grab the following windows program (ran under wine pretty flawlessly):
iccinspect.exe from: http://www.littlecms.com/iphoto/inspect.htm (Open Source !)
This program enables you to closely examine the contents of the icm files. It prints shows all the stuff like vendor and color-space infos and whatnot :-)
Second I scanned a picture with the scanner and applied the input icm to the scan with using the gimp (There is a command line tool for non-gimp users).
Then I adjusted my monitors settings, resulting in my setting the color temperature to 9300K since that resembled the picture the best.
I tossed in the Windows own icm file "sRGB Color Space Profile.icm" that I found under C:\Windows\system\color (Windows 98) as sRGB.icm and monitor.icm into /usr/lib/color so I have some kind of setup.
If you do have a disk with the correct icm file on it, use that file instead. Only use sRGB.icm if you want to exchange files with others.
Third I send a icm file for my dads printer (an epson :-) ) to my dad and he just tossed it into /usr/lib/color (as root) and has not complained yet :-D
I keep on ignoring slight color glitches while working on the pictures since I beleive the correct colors will come out of the printer anyway ...
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There is plenty of more reference out there:
http://www.efg2.com/Lab/Library/Color/index.html
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But feel free to ask if nessecary. -
I just set up such scanner at my dad's linux box
He had bought another model of that series (3170). But anyway yours should be similar if not the same setup. I used:
-SuSE 9.0 (distro does not matter)
-Gimp 1.2
- a matching sane along with xscanimage (though now used)
-iscan package installed and linked as a gimp plugin, from epkowa: http://www.epkowa.co.jp/english/linux_e/index.html
-littlecms library from:
http://www.littlecms.com/
-gimp color management plugins from:
http://www.freecolormanagement.com/color/gimp.html
(do not give a damn for the "alpha" status) ... but make sure to copy all icc profiles into /usr/lib/color (hardcoded in main.c ... I guess you can name some files to: scanner.icm, printer.icm and display.icm (if you have according inputs) ... but I way able to install some scanner icm's under different names and was able to select them anyway
- grab some scanner drivers for Windows from the Epson site. The EXE Files are self extracting Zipe-Archives, so you can simple do an unzip .exe
- look for the *.ic_ files
- install msexpand (package mscompress) from your distro (or from here: ftp://ftp.penguin.cz/pub/users/mhi/mscompress
- then do an expand .ic_ and rename the result to
- alternative
+ if no *.ic_ files found, look for *.cab files
+ install cabextract from your distro (look here http://freshmeat.net/projects/cabextract/
+ look for *.icm file
- the file program should tell you that the icm-file is a:
# file Per317_r.icm
Per317_r.icm: Kodak Color Management System, ICC Profile
First I installed a icm for the scanner for prints mode and a seperate icm file for slides/negatives mode. Per317_r.icm for prints (r=reflective) and
Mine were Per317_t.icm (t=transparent) -- that made the most sense.
If you have access to a Windows Box or do run wine you can grab the following windows program (ran under wine pretty flawlessly):
iccinspect.exe from: http://www.littlecms.com/iphoto/inspect.htm (Open Source !)
This program enables you to closely examine the contents of the icm files. It prints shows all the stuff like vendor and color-space infos and whatnot :-)
Second I scanned a picture with the scanner and applied the input icm to the scan with using the gimp (There is a command line tool for non-gimp users).
Then I adjusted my monitors settings, resulting in my setting the color temperature to 9300K since that resembled the picture the best.
I tossed in the Windows own icm file "sRGB Color Space Profile.icm" that I found under C:\Windows\system\color (Windows 98) as sRGB.icm and monitor.icm into /usr/lib/color so I have some kind of setup.
If you do have a disk with the correct icm file on it, use that file instead. Only use sRGB.icm if you want to exchange files with others.
Third I send a icm file for my dads printer (an epson :-) ) to my dad and he just tossed it into /usr/lib/color (as root) and has not complained yet :-D
I keep on ignoring slight color glitches while working on the pictures since I beleive the correct colors will come out of the printer anyway ...
---------
There is plenty of more reference out there:
http://www.efg2.com/Lab/Library/Color/index.html
---------
But feel free to ask if nessecary. -
Re:Fantastic!
Photoshop also supports color management through and through- GIMP never has out of the box and never will, because there's no such thing as color management under linux; it's not builtin to X, there are zero calibration devices for linux, etc. Even gamma is something of a mess under Linux.
What's wrong with X11's gamma settings? Can tune gamma on all three channels, or all at once, with pure and simple command line tool.
X11 has color management extensions. It's just that apps don't seem to care. (Sounds familiar, huh?) GIMP, however, does do CMS, via littlecms library (which is also used by other cool Linux graphics/typesetting apps like Scribus these days).
Not sure about high-bit-depth graphics formats though, I'm a plain old-fashioned SLR & el cheapo scanner kind of photographer, digital cameras are not in my price class. Maybe Cinepaint?
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Color management
Photoshop also supports color management through and through- GIMP never has out of the box and never will, because there's no such thing as color management under linux
Not true. Color management in Linux is in its infancy, but it's not nonexistent.
But Color Management is the reason I won't be switching to Gimp 2 anytime soon. Frankly, ANY photo editing software is useless without CM, and I doubt that the Color Manager Plug-in for The Gimp will be revamped any time soon to work with Gimp 2.
So until I see some serious effort to support Color Management by Gimp's developers, I'll be sticking to Photoshop and Gimp 1.2, thank you. And yes, I use both.
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Re:Fantastic!
"Photoshop also supports color management through and through- GIMP never has out of the box and never will, because there's no such thing as color management under linux; it's not builtin to X, there are zero calibration devices for linux, etc. Even gamma is something of a mess under Linux."
You mean color managemnt like this ?
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Re:Ad when is REAL CMYK Coming ?Not true, there are plenty of open source colour management systems around, for example Little CMS.
The problem is that gimp's internals are all designed for 1 and 3 band 8 bit images. When they get GEGL up and running, gimp will have real CMYK.
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Re:Ready for printing? Don't think so.
Gimp uses littlecms, which generally beats commercial packages on accuracy and speed in the tests I've seen.
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Re:Ready for printing? Don't think so.There's a thing to output to CMYK using a colour profile via littlecms.
What GIMP is missing is native CMYK (ie. it's all still RGB for editing). Next version! -
Re:Nonsense.
Rather than give you a whole bunch of details about what "I" do that will add a lot of noise to the discussion, I'll point you toward the actual tools that may be of help in creating your own workflow:
scarse for command-line calibration and profiles work (pre-built rpms can be had at the rpm search sites, see also patches if you want to compile yourself.)
And of course these days there are also additionals things that you can do some tasks related to color management:
Photoshop and some other tools from device vendors in the Windows world will run under Crossover Office (I use PS6 mysefl).
Some basic (very basic) stuff also exists for GIMP if you are so inclined.
VMware is helpful if you need to run applications in a real Windows environment from within Linux with device support, including support for USB.
Finally if you are a coder you may find littlecms to be useful as well. -
Re:It takes too much work from usersLinux is a color management desert (far as I can tell).
GPL Color Management for Linux/BSD: Littlecms for Linux/BSD/Windows
GPL Desktop Publishing which is uses lttlecms: http://web2.altmuehlnet.de/fschmid
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Re:Printing, and then maybe fonts
Even though this is OT here, there are two projects that will eventually provide a (actually two) free color management system:
LittleCMS (at http://www.littlecms.com) and Argyll (at http://web.access.net.au/argyll/argyllcms.html). All the basic stuff is already there, Argyll can even create ICC profiles for printers.
... and to bring this thread back on track: I can do everything that Turboprint does with gimp-print and CUPS.