Re: CGATS text file from a profile
Re: CGATS text file from a profile
- Subject: Re: CGATS text file from a profile
- From: email@hidden
- Date: Sat, 19 Mar 2011 21:54:23 +0100
Hi friends at list,
interesting discussion here.
I don´t know if somebody mentioned earlier, but ...
In basic, agree with David. We are not talking about some kind
of colored "slides" in layers, we are talking about offset printing.
You are totally disregarding many specific factors influencing colors
of final print. Can you imagine how important can be not only dot gain,
but trapping values, printing colors order (significant changes can
occur especially in newspaper printing) etc.?
And all this is absolutely independent on substrate color. So at the
end of the day, color of substrate will be only one of many characteristics
of target printing process.
So, IMHO, you need profile of target printing process; you can use
this profile in number of different ways afterwards.
As usual, sorry for bad grammar...
Warm regards from Prague!
Kamil
>
>
>On Mar 18, 2011, at 11:37 AM, Eric Nunn wrote:
>
>>
>> What I am basically asking is, say a newspaper printer who is using ISONewspaper26v4 as his standard profile, needs to print a supplement on pink paper, like the Financial Times. Could you edit the whitepoint of the standard profile to reflect the new Lab values and by converting source RGB files using absolute rendering, end up with a set of separations that are tailored to that new target condition adapting the greybalance etc to maintain colour appearance as far as possible?
>
>Basically you are asking to emulate the results of printing on this media, instead of printing on it, and measuring the results. If that worked well, we wouldn't need custom profiles...
>
>C. David Tobie
>Global Product Technology Manager
>Imaging Color Solutions
>email@hidden
>Datacolor
>www.datacolor.com/Spyder3
>
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