On Wed, 18 Nov 2009 22:07:42 marti.ma...@littlecms.com wrote: > There is a precedence in the order of tags. If A2B1 is not found, then it > reverts to A2B0. If none of such tags are found, then it reverts to > matrix-shaper (colorants and tone curves). I'm unsure if this is stated > in the ICC spec, but AFAIK all CMM does behave alike. > There are some profiles that instead of implementing all intents just > "link" the A2B0, A2B1 and A2B2 to the same table, which usually is relative > colorimetric. > > So the bottom line is: you cannot know in advance whatever gamut mapping is > being applied. It is up to the profile creator. That may be frustrating > but is inherent in the ICC way to do color management.
OK, but therefore (as theoretically the PCS is unbounded) the CMS (in this case LCMS) should not perform any gamut limiting tasks. And it should just pick up then the A2B0 table and perform away as if it was an A2B1 table. Correct? So I just need to make sure that the tool generating the profile (Argyll in this case) will write a table to A2B0 that is suitable for a relative colourimetric intent that would otherwise appear in an A2B1 table. Guy -- Guy K. Kloss Institute of Information and Mathematical Sciences Te Kura Pūtaiao o Mōhiohio me Pāngarau Massey University, Albany (North Shore City, Auckland) 473 State Highway 17, Gate 1, Mailroom, Quad B Building voice: +64 9 414-0800 ext. 9585 fax: +64 9 441-8181 g.kl...@massey.ac.nz http://www.massey.ac.nz/~gkloss ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
