Re: Pigment Ink - "blues turing purple and reds turning orange"
Re: Pigment Ink - "blues turing purple and reds turning orange"
- Subject: Re: Pigment Ink - "blues turing purple and reds turning orange"
- From: Tyler Boley <email@hidden>
- Date: Sat, 27 Jul 2002 10:41:09 -0700
>
If anyone is interested in understand *why* this happens, an illustrated
>
explanation may be found here:
>
<http://www.brucelindbloom.com/index.html?MunsellCalcHelp.html#BluePurple>
>
(It is explained as as part of the "Munsell Display Calculator.")
>
--
>
Bruce J. Lindbloom
First of all, I have to say this problem is not limited to pigment inks.
Bruce Lindbloom's explanation is very insightful, and I have to give it
credence since I'm for below his level of expertise. But having battled
this in a crude sort of way for a couple of years, it's my opinion that
there is more to it. I still think some profiling software is not
letting us get to the gamut of our devices. If I print out a ramp of RGB
255-255-255 to 0-0-255 with no color adjustment same as source, I can
see with my own tired eyes a wonderful, non hue shifting, rich, white to
blue ramp on paper.
I have profiles from different sources made with different software,
only one lets me get to these blues. In every other way it sucks. The
other profiles print this ramp terribly, the entire ramp is
undersaturated, it hue shifts dramatically as it gradates, and 0-0-255
is some lame undersaturated purple. I know the difference between the
public's blue and true photo blue, that's not the problem. These
profiles tend to be superior in other ways, is there a trade-off?
No amount of editing will fix it (I only have access to Doctor Pro)
because it will only edit within the defined gamut of the profile. I
haven't the expertise to really check and see if my unprofiled device
blue is somewhere within the space defined by the profile to see if I
can make an edit that will let me get to it, but after many fumbling
attempts trying anything I don't think it's in there.
I think a lot of this software is not letting us fully utilize the
capabilities of our devices, even though it's obviously light years
ahead of no profile at all.
Tyler
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