Quoting Martin Florek <mflo...@gmail.com>: > Hello, > I would like to convert a D50 Lab values to Lab values for a different > color temperature illuminant. Is this possible with Little CMS, and if > then how? Tahnk you.
Hi Martin, Yes, it is certainly possible. - Create A D50 Lab profile by using cmsCreateLab4Profile(NULL) - Get the chromaticity of color temperature and use it as black-body white point cmsWhitePointFromTemp(&White, temp); cmsCreateLab4Profile(&White); - Set adaptation state to unadapted cmsSetAdaptationState(0); - Then create the transform by using absolute colorimetric intent. You can check this by using transicc: C:\lcms2-2.6\bin>transicc -i*Lab -o*LabD65 -t3 -d0 LittleCMS ColorSpace conversion calculator - 4.2 [LittleCMS 2.06] Enter values, 'q' to quit L*? 100 a*? 0 b*? 0 L*=100.1896 a*=3.9640 b*=17.8366 Regards Marti ------------------------------------------------------------------------------ DreamFactory - Open Source REST & JSON Services for HTML5 & Native Apps OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access Free app hosting. Or install the open source package on any LAMP server. Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! http://pubads.g.doubleclick.net/gampad/clk?id=63469471&iu=/4140/ostg.clktrk _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
