Re: PrintOpen 5.1 question
Re: PrintOpen 5.1 question
- Subject: Re: PrintOpen 5.1 question
- From: Roger Breton <email@hidden>
- Date: Wed, 05 Jan 2005 11:58:15 -0500
> The re-iteration sounds gmg like, and as such it may work well.
I don't know PO5 uses similar algorithms as GMG but it works similarely.
> However, do bear in mind that multiple iteration can lead to greater
> inaccuracy as you bump against device accuracy
Right.
> - I was advised to not
> go more than 2 or 3 steps, save after each and compare.
I am working on a case where I am using this iterative feature to improve
the proofing between a Heildelberg QuickMaster DI press to an Epson 4000
Ultrachome. After two iterations, the average DeltaE is down from 2.10 to
1.61 to 1.55. I am sure what will I actually gain by additional iterations
but 1.55 is quite acceptable, I would think.
> To compare accuracy you're going to need a very good <mark one eyeball>
> OR, preferably, a utility like basICColor Control from
> www.colour-solutions.de 14 day demo available. You'll also need proof
> sheet or target proofer data, or an accurate profile for it [to use as
> the desired target].
PO5's Profile editor has a Statistics module that can be used to directly
compare two profiles, much like MeasureTool. I don't see the need to
basICColor Control?
> all the best
> neil
Regards,
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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