Re: Device Link Profiles & Monaco Profiler Platinum
Re: Device Link Profiles & Monaco Profiler Platinum
- Subject: Re: Device Link Profiles & Monaco Profiler Platinum
- From: Terence Wyse <email@hidden>
- Date: Tue, 27 Oct 2009 19:21:12 -0400
Hi Kevin,
Only a couple of questions/comments:
* Did you attempt to keep the primaries and secondaries pure? If
you're going for a *colorimetric* match (I assume as much because you
appear to be looking for the lowest dE), you shouldn't check these
options on. The DVL needs to be allowed to correct the the primaries
and secondaries IF you want the best dE match. The more you try to
"restrict" or preserve certain colors in the DVL, the worse match it's
going to return. You can't expect as good a match if you've "tied the
hands" of the DVL with these special color restrictions.
* For an Approval proof, I would assume you would allow 400% total ink
since the source file you're sending to it may have 400% ink. If
you're restricting the total ink to 300%, it's not really a "proof" of
the original if you catch my meaning. In terms of dE, if you're
sending it an IT8.7/4, which has many patches >300%, you shouldn't
expect as a good a dE/colorimetric match.
It would be interesting to know WHICH 33 patches exactly are out of
tolerance. If it's mainly the primaries/secondaries and any patches >
300%, there's probably your answer.
Having said all this, I've never really fooled with Monaco's DVL
creation. Call me a Link-o-Lator and Alwan LinkProfiler man! I've done
Approval's with Link-o-Lator before and, if memory serves, there was a
definite trade-off between colorimetric accuracy and color
preservation exceptions.
Regards,
Terry Wyse
On Oct 27, 2009, at 5:28 PM, Kevin Muldoon wrote:
I had my first experience creating a device link profile
(henceforth, DVL) and I wasn't too thrilled with the result. Hope
you guys can help improve the situation. Here's the stats....
ICC: Monaco Profiler Platinum 4.8
Target:IT8.7/4
Proofer: Kodak Approval XP2, D3332 Media set
Press: SWOP2006Coated3v2 (From IDEA Alliance)
RIP: Nexus
Control: IDEAlliance ISO 12647-7 Digital Control Strip 2009
Result: 33 patches of control strip > DeltaE 2. Far worse than the
10 patches out that Kodak's downloadable DVL currently gives us.
Obviously, Monaco is not the correct choice for DVL creation since
the black channel is not excluded from transformations. However, I
would have expected a closer colormetric match or at least closer
than the default DVL provided by Kodak.
I sent target to the Kodak Approval XP2 with D3332 Media, being sure
to remove any CM. I measured the output to verify my TVI and
densities were within the Application Data Sheet Specs. I created
the .icc with medium K generation and 300TAC, maxing the K at 95%.
Once profile was created, I linked it with the
SWOP2006Coated3v2.icc, this time choosing 100K on max black. I
plugged in DVL, sent a proof and viola! 33 patches out.
Did I do something horribly wrong or should I simply point my finger
menacingly at Monaco and say "Bad Profiling Software!"
Thanks for the help guys. This one is gonna keep me up at night.
-- Kevin Muldoon
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