Re: Profile Creating Software
Re: Profile Creating Software
- Subject: Re: Profile Creating Software
- From: Henrik Holmegaard <email@hidden>
- Date: Mon, 3 Sep 2001 07:57:56 +0200
"Lewis Levin" <email@hidden> wrote:
I am looking for comments about the quality of these
products:
- Gretag ProfileMaker Pro
ProfileMaker 4 is being previewed at Print01. You would among other
things need to check how well the remaining products in your list
handle the mechanics of separation, compared to PMPro4.
My usage will be as follows:
- Using EyeOne photospectrometer
Good combination, the Eye-One Pro is both a spot mode and a scanning
mode spectrophotometer, so it does double duty.
Key criteria are:
- quality of resulting output profiles
- linearization of output as part of a 2 step profile generation process
- lots of patches
- freedom from bugs and user interface gotchas
PMPro 3 and up have an understandable UI and understandable
documentation. It now also has a wide user base in the US which means
there are many who can help you, because the pool of experience is
wide.
You do not want 'lots of patches'. You want patches well spaced
around the hue angles, as few patches as possible, and an internal
gamut modelling that works smoothly.
No vendor I know of builds the printer gamut right off the measured
patches. The measured patches are used as a 'goodness of fit'.
If the printer gamut were built right off the measured patches, you
would be measuring thousands and thousands of patches.
It's the same as the idea that the LUTs (look-up tables) contain all
the grid points at once, so the look-up is direct with no
interpolation. If that were so, a printer profile would be 50 Mb -:).
Don't look for 'lots and lots and lots of patches'. Look for
technology that is not only smart, and also works -:).
And a note: PMPro and Eye-One Match share printer targets. You may
want to consider using Eye-One Match and occasionally asking a friend
or consultant who owns PMPro to build you special purpose profiles.
All you need to do is mail the measurement documents.