On Saturday 05 August 2006 10:34, Simon Roberts wrote: > Hi All, > > I want a color managed environment on my Linux system, so I can see > what my photographs are really going to look like. Unfortunately, while > I'm tolerably competent in general Linux, I'm totally new to color > management I'm pretty sure that lcms is going to be part of what I > need, but I suspect there will be other things I need too, but I don't > really even know which man pages or whatever to start with. > > Currently I have Linux, GIMP, Nikon D50 camera, ufraw, gutenprint, an > ICC profile for my monitor (generated with a hardware profiling tool > under windoze), an Epson R200 printer with a custom profile for the > ink/paper combination I'm using (generated by the ink manufacturer). > > So far everything is entirely non-color managed. I just use ufraw to > read .nef files from the camera into GIMP and hope for the best. It's > not a disaster so long as I used a custom white balance and don't try > to mess with the color at all. However, I know there should be more; > how do I tie this together? Where do I start reading? > > Many thanks in advance for any pointers you can offer.
You have likely seen the thread on this list titled "Workflow with LCMS". That thread has lots of information about what tools to use and how to learn more about the subject. There are a number of tools that you can use to get a working CM system on Linux. Because this is still not a mature area on Linux there are some things that you will have do manually. What hardware did you use to profile your monitor on Windows. If it is the X-Rite DPT-94 then ArgyllCMS 0.6 has will work for monitor calibration and profiling on Linux. This will allow you to get a profile and calibration that are correct for your setup. The Windows profile is likely not correct but may be better than nothing. If you want to use the Windows profile you should look into xcallib which is a gamma loader that will use the VCGT from the profile to setup the LUT in your video card. For profiling your camera you will need an IT8.7 target and some software. I recommend the Wolf Faust C1 IT8.7 target for camera profiling. I would also recommend LProf as your profiling software for this. It includes a UFRAW profiling tutorial in it's help system. Has a GUI and if fairly easy to use as these things go. I currently recommend CinePaint as your image editor. It has full CM support and handles high bit depth images. Is the custom printer profile generated from a target you printed using your work flow on your machine? If not then it is likely not valid. Printer profiling is a very difficult undertaking and it also requires some fairly expensive equipment. There may be others here that have experience with this using Linux and Guten-Print that could give you some pointers. There is a learning curve to all of this stuff so be prepared to struggle with all of this at least a little and some of it alot. Start with the easier stuff first. Camera profiling is were I would recommend you start. Not too difficult and it is a the beginning of your work flow. Then do what you can with your monitor and so on. Hal ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
