Re: ImagePrint
Re: ImagePrint
- Subject: Re: ImagePrint
- From: "Ernst Dinkla" <email@hidden>
- Date: Thu, 23 Jan 2003 12:03:22 +0100
Could someone comment on the following observations:
When I load an ImagePrint "RGB" printer profile in ICCinspect
(www.littlecms.com) I see lots of slopes, shoulders, hiccups etc in the in-
and output curves. None of that is seen in a custom "RGB" profile made with
Profiler Pro for the same ink and media setting in ImagePrint. The two
profiles gamut shapes look almost identical in the 3D profile viewer of the
Wasatch SoftRip. I got the two profiles from James Irelan because he had
difficulty to get blacks without lighter streaks in them with the custom
profile. No ImagePrint here but I'm curious what is so unique about that
driver and its profiles.
Checking other "RGB" printer profiles from various sources don't show any of
those typical curves in ICCinspect or just a small contrast shift in one of
the curves.
I'm on thin ice here but it looks like an attempt to give some inklimit, etc
instructions normally found in a CMYK printerprofiles by bending the curves
in the "RGB" profile. Most likely it also has linearisation compensation as
the hiccups are probably at the point where the Cc, Mm, Kk inks switch.
Ernst
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