Re: Monaco Profiler 4.7 to X-Rite i1 Publisher Pro Upgrade
Re: Monaco Profiler 4.7 to X-Rite i1 Publisher Pro Upgrade
- Subject: Re: Monaco Profiler 4.7 to X-Rite i1 Publisher Pro Upgrade
- From: Andrew Rodney <email@hidden>
- Date: Fri, 26 Aug 2011 09:16:03 -0600
On Aug 26, 2011, at 8:56 AM, Dan Gillespie wrote:
> You also get several features that you didn't have with Profiler such as iteration and verification (typically RIP features - but now you can iterate without a RIP)
It would be interesting to bring the iteration into a discussion. I found it did absolutely nothing if I started with a sufficiently large patch sample from the get go (for RGB, 1728 patches). IOW, testing I did showed that adding another 3000 patches resulted in a fraction of a dE difference in the two profiles. Chris Murphy found similar results testing a CMYK profile.
I also think we need to be clear what iteration does and doesn’t do (so far, an open question if you will). My understanding is unlike say Oris, this iteration process is not designed to account for device drift or changes. Its designed for an improved resulting profile. In my tests that didn’t happen. What I was told by X-rite is that iteration is useful for those who start with an initial small patch process (ala ColorMunki which uses initially only 50 patches, then iterates the 2nd 50). That technology works amazingly well IMOH. But if an advanced user starts with a sufficiently large patch sample, and that number is open to debate, then iteration isn’t at all useful. That’s been my experience.
I was hoping that the technology would improve a profile built with a decent set of initial patches. Especially if you feed the iteration specific colors. An example would be building a profile for an Epson printer, then iterating with a number of neutral gray patches to improve gray balance such we could use an ICC profile instead of the Advanced B&W driver for better neutrality. This is something Bill Atkinson did many years ago when he created his profiles for the older Epson printers. His process actually used the additional patches, along with some analysis of the original to better shift neutrality of the resulting profiles. I did not see any benefit to suppling the iteration i1P engine more neutral patches in this respect.
Now that i1Profiler has been out awhile, I’m wondering if anyone else is seeing these conditions.
Andrew Rodney
http://www.digitaldog.net/ _______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden