Gerhard Fuernkranz wrote:
Regarding calibration, I've no evidence whether the spectra found on an IT8 target are sufficient to establish the mapping. If not, then maybe additional targets with inkjet spectra might be required.
A reference that only has three independent channels (ie. Photographic film) would likely not have enough independent channels (ie. metamers) to give you enough information to establish your matrix values. You'd probably need one or several charts with known spectra (or XYZ) values, composed of individual colorants (such as paints), or charts with several different base colorants. Graeme Gill. ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user