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: "Dave King" <email@hidden>
- Date: Mon, 29 Jul 2002 20:16:46 -0400
----- Original Message -----
From: "Tyler Boley" <email@hidden>
>
> 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
Can someone explain why color that can be printed with the Epson driver set
to no color adjust gets squashed coming through the profile?
Dave King
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