Re: Color shifts in print profiles
Re: Color shifts in print profiles
- Subject: Re: Color shifts in print profiles
- From: Andrew Visscher <email@hidden>
- Date: Tue, 03 Jun 2003 17:36:28 -0400
From: "Bruce J. Lindbloom" <email@hidden>
>
Andrew Visscher wrote:
>
> But, I'm finding that there are color shifts when using many profiles,
>
> shifting colors the printer is perfectly capable of producing towards
some
>
> other color -- reds toward orange, yellows towards green, blues towards
>
> purple, etc.
>
>
These are well known problems when attempting to reproduce colors that are
>
*outside* the gamut of the printer. Are you absolutely certain these
problem
>
colors are in-gamut? If so, how are you determining this?
OK, that enables me to be more specific... When I commented that those are
colors the printer is perfectly capable of printing, I should have said it
is capable of printing bright reds and blues (in the example in my original
msg) when not using the profile. Ex: A bright red balloon is still bright
red; using the profile it is a bit orange. The profiles seem to reduce the
bright colors the printer would otherwise print. Of course, w/o the profile,
there are many other problems, especially trying to get results close to
what I expect.
To answer the next question: yes, the profile shows those reds and blues as
out of gamut when softproofing in PS & using the gamut warning. However,
even some of the blues still in gamut are shifting towards purple. Either my
eyes are fooling me on the non-profile prints, or the profile is limited
more than it should be.
From your reply, it looks like I'm running into a limitation of profiling
that needs to be worked around. I expected the out of gamut colors to be
mapped to something closer to the actual color than what is happening. I
should go in search of more articles regarding dealing with out of gamut
colors. :)
- Andy
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