On Mar 31, 2012, at 3:02 PM, Kamil Tresnak wrote:
i wrote "good middle class" :) OK, OK, "well done, good job" was definitely more appropriate, i was just little bit disputing "best on the planet".
Yes, perhaps a statement that's a bit bold. I would've clarified "for an ICC-based solution, these are very good numbers". One key thing that was missing (in my opinion) is the dE metric used. If it was dE76, good numbers indeed....but if it was dE2000, good but not exactly "great" numbers.
IMO, technically speaking, depends on what we measure. If you measure little bar (Fogra), it is no matter if you get average 1,1 or 0.90, particulary with regard to instrument precision. But if you measure big target (ECI), improving in both values, average and max, is a bit more important.
I generally find the (Fogra/IDEAlliance) control strips to result in higher dE values (they test the more difficult patches) while the ECI20002-IT8.7/4 charts to be perhaps a bit more forgiving (a larger percentage of "easier" patches). I think there's some clear advantages between some of proprietary solutions (GMG, et al) vs. RIPs based on "open" ICC technology....but the gap is perhaps narrowing as more ICC-based solutions offer some form of profile iteration or "optimization". In the case of iProfiler, I've yet to see it's profile optimization do much improvement that's not within the margin of instrument repeatability, assuming you're starting with 2,000+ patches to begin with. I guess folks can decide whether starting with few patches and then optimizing vs. starting with a lot of patches to begin with that don't require optimization is the better approach...to each his own set of patches. :-) Having said all THAT, I think what's becoming the more critical piece is the *calibration* (i.e. "linearization") routine employed by the various software RIPs. On a given day, many of these proofing RIPs can achieve a reasonable dE and visual match to a standard dataset....KEEEPING it that way becomes the challenge and this is where I find a clear distinction among some of the various RIPs. Regards, Terry ______________________________________ Terence Wyse, WyseConsul Color Management Consulting G7 Certified Expert FIRST Level II Implementation Specialist