Hi, Many thanks for reporting. No, the issue is not between keyboard and chair but in the code, or maybe in the spec itself. The nikon profile has only one table for perceptual, and then a matrix-shaper. So, what to do when the user requests rel.colorimetric? lcms-1 was reverting to perceptual, and I guess this is the required behavior. This is documented in the tutorial, page 13, "Rendering intents", and due to a bug, the matrix-shaper was being used instead.
So thanks a lot. The fix takes 2 lines of code and will be in the git in few hours. Thanks again Marti. Quoting Esben Høgh-Rasmussen <[email protected]>: > Hello, > > I tried to use LCMS2 but quickly ran into problems with intents. > Specifically, I > can only get it to work with the perceptual intent (LCMS1 worked fine). > > Here is a small crop that show the problem (compared to PhotoShop): > http://updates.phaseone.com/prerelease/Images/lcmsTestFig.png > > These are an image converted to sRGB using a device-specific color profil e. I > posted a problem with LCMS1 with the same image a few weeks back, but > really any > image have the same problem, at least with the color profiles I > intend to use. > > On the good side, LCMS2 solved the problem I had with LCMS1: great work! > > I wrote a small and stupid program to reproduce the problem. There > could well be > a PEBKAC lurking here, so I collected it all in a file: > > http://updates.phaseone.com/prerelease/Images/lcmsTest.zip > > (The RAW-image is 320x320, 16-bits, interleaved, Intel-endian.) > > > Kind regards, > > Esben Høgh-Rasmussen Myosotis > Software Engineer > > Phase One A/S > Roskildevej 39 > DK-2000 Frederiksberg > Denmark > Phone: + 45 36 13 12 07 > Fax.: + 45 36 46 02 22 > Mobile: + 45 28 51 10 79 > E-mail: [email protected] > www.phaseone.com <http://www.phaseone.com/> > > ------------------------------------------------------------------------- ----- > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Lcms-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/lcms-user > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Lcms-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lcms-user
