Hi, Humm... on my test profiles lcms2 works fine on multichannel. Do you have a sample profile that demostrates the issue? Have you tried also tificc utility?
Regards Marti Original Message: ----------------- From: Andrea Galligani da...@tin.it Date: Thu, 21 Jul 2011 13:04:08 +0200 To: lcms-user@lists.sourceforge.net Subject: [Lcms-user] N-Color -> Lab conversion Hi, I found some problem converting N-Color images in Lab. The main problem is that the result is different using lcms 1.17 and lcms 2.2. Typically lcms 2.2 results are reddish and more contrasted. Do you know exist something that explain this difference? The problem is not present if I use CMYK profiles. I use the same method in both cases changing the input format. Do you know if I should do something different between N-Color -> Lab and CMYK -> Lab transformation? Does it exist some reference tool to convert an N-Color image to a Lab one? Note: Separated images are generated by Photoshop CS4 converting Lab images using the same parameters used in the reverse transformation; the same ICC profile, Absolute Colorimetric intent, No black point compensation and No dither. Best regards Andrea ---------------------------------------------------------------------------- -- 5 Ways to Improve & Secure Unified Communications Unified Communications promises greater efficiencies for business. UC can improve internal communications as well as offer faster, more efficient ways to interact with customers and streamline customer service. Learn more! http://www.accelacomm.com/jaw/sfnl/114/51426253/ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user -------------------------------------------------------------------- mail2web.com What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint ------------------------------------------------------------------------------ Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
