Re: Color changes between perceptual and colorimetric
Re: Color changes between perceptual and colorimetric
- Subject: Re: Color changes between perceptual and colorimetric
- From: Ian Lyons <email@hidden>
- Date: Thu, 22 Aug 2002 19:12:01 +0100
Andrew,
>
>
>
> Do I have to adjust one profile for perceptual intents and one for
>
> colorimetric intents?
>
>
It's the default in EyeOne Match to use Preserve Paper Gray which will cause
>
this (In ProfileMaker Pro, you'd pick Paper Gray Axis). I think in the new
>
version (1.2) this was switched. Bottom line is that if you get this yellow
>
preview and output, you have to avoid using Perceptual. This only shows up
>
with some papers that have a certain degree of optical brighteners. Try 1.2
>
and see if this clears up the issue with gray mapping.
They didn't switch anything. i1Match 1.2 incorporates the same Optical
Brightener sensing function as PMPro 4.1. However, unlike PMPro 4.1 which
notifies the user that OB's are present and gives them the option of
applying the built-in correction i1Match simply applies the correction. To
date I've not come across a situation where i1Match 1.2 has got it wrong.
There should no longer be any need to choose the RC Intent so as to avoid
warm neutrals.
Stefan should definitely download version i1Match 1.2. It can be obtain from
http://wwwi1color.com and go to the support pages
Ian Lyons
http://www.computer-darkroom.com
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