On 14.06.2010, at 19:52, marti.ma...@littlecms.com wrote: > [snip] > 3D table of 17 points is enough for all but hardly non-linear > color spaces. 33 points should be enough for everything. As long as the > color transform is same (sRGB to monitor, for example) you can reuse > same table. Color transform may involve any intent and many profiles, > softproofing for example. > > Don't waste time implementing prelinearizations or weird things, > give first a try to this simple 17-points table. If tetrahedral > is hard to implement for you due to tetrahedra subdivision, use > triliner instead.
Very interesting! What parameters are needed to get a transform as CLUT without prelinearization tables - always? Using double pixel formatters I seem to always get transforms with multiple "stages". Is it also possible to build a CLUT to Lab PCS? Any reason why that should be avoided? And XYZ? How many grid points would be needed to get reasonable precision? Regards Mark ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
