FYI: I just learned that the matrix in the ICC profile includes the primaries and chromatic adaptation. That's why the values "change".
Sorry for the noise. Best regards Mark On 17.09.2008, at 03:03, Mark wrote: > Hi all, > > I have noted that lcms is changing the primaries passed to > cmsCreateRGBProfile. > > Eg: when I try to create a matrix profile with the sRGB primaries as > below: > XYZ Colorants Red 0.436066 0.222488 0.013916 Green 0.385147 0.716873 > 0.097076 Blue 0.143066 0.060608 0.714096 > xyY colorants Red 0.648454 0.330852 0.222488 Green 0.321198 0.597844 > 0.716873 Blue 0.155885 0.066038 0.060608 > > lcms will write a profile containing: > XYZ Colorants Red 0.381592 0.192749 0.008087 Green 0.424454 0.735931 > 0.082016 Blue 0.158157 0.071335 0.734802 > xyY colorants Red 0.655174 0.330941 0.192749 Green 0.341640 0.592346 > 0.735931 Blue 0.164014 0.073976 0.071335 > > Is this supposed to be so or is this a problem with lcms? > > Best regards > Mark > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere in > the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Lcms-user mailing list > Lcms-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lcms-user ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
