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QTR-Quadtone RIP

Index last updated: 2026-04-28 23:12 UTC

Message

Re: [QuadtoneRIP] Re: Trying to Understand Linearization

2007-08-31 by Roy Harrington

The QTR linearization adds a correction curve so that the steps in the wedge
are evenly spaced by "L" value (i.e. Luminosity of Lab).  This is
different that the
various gammas, dotgains etc.  Since all the QTR profiles are
linearized the same
way there are some generic ICC profiles (QTR Gray Matte Paper and QTR Gray Photo
Paper) that can be used for printing that will match your embedded profile.

If you want to go to the next level after linearizing your QTR
profiles you can make
custom ICC profiles using a similar method but with QTR-Create-ICC.
This way you
can also get softproofing in Photoshop as well.

Roy

On 8/30/07, rip_id2857 <rip_id2857@...> wrote:
> Hi,
>
> Being new to QTR, this is one of my questions as well. Very surprising
> that nobody is answering this question ... we're supposed to be on a
> QTR forum, right?
> As this is one of the basic items on this rip I thought the
> experienced users could tell us all about it...unfortunately it seems
> that this is not the case.
>
> Grtz,
> herman
>
>
>
>
> Yahoo! Groups Links
>
>
>
>

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