Re: RIP Curve Editing
Re: RIP Curve Editing
- Subject: Re: RIP Curve Editing
- From: email@hidden
- Date: Thu, 18 Jan 2001 10:02:22 EST
In a message dated 1/18/01 2:46:58 AM, email@hidden writes:
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Several RIPs I know of allow the user to apply curves to a profile, for
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each
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channel (C,M,Y,K). It seems to permanently alter the profile when you
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apply
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them. None of the RIPs comes with documentation about the practical means
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one would go about this, and it's not striking my intuition the way I'd
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hope.
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Would anyone mind sharing their methodology and experience here? I
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understand what's happening, I just don't get the means one goes about
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using
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the curves.
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The reason you can't see intuitively how one would accurately adjust such
curve tools, is that there is no intuitive way to accurately alter such
curves. If you use a spectro or densitimeter to build data tables to be
applied here, then you are simply creating an inferior version of a proper 3d
lookup table, and might as well build proper ICC profiles instead. Perhaps if
you have a densitometer but no spectro, and are comfortable with this type of
adjustment, it would be simpler... but certainly not better. Generally such
tools precede ICC profiling capabilities, and are retained for those not
using profiles, or for desparate fixes.
C. David Tobie
Design Cooperative
email@hidden