QTR-Quadtone RIP

Scott,

First, read a test print (21 step grayscale) printed with you 
UNlinearized file, and save it as a text file.  When you drag this 
text file with the 21 step readings to Create-ICC, a new text file 
should be created and it will open up on your screen (at least it 
does on Windows).  At the bottom, it should show you a line with all 
21 steps sorted in ascending or descending order.  Highlight this 
entire line with your mouse and copy it (Control-C on the PC).  Then 
go to the linearization tab in the Curve Creation module of QTR and 
click the paste button.  These sorted numbers should be pasted into 
the linearization window.  Then save the profile.  You just 
linearized your file if you did everything correctly.

Lou

--- In QuadtoneRIP@yahoogroups.com, "scott.romans" <scott.romans@...> 
wrote:
>
> I share Jens's confusion. I am using a Piezography NK7 inkset in an 
Epson R1800, trying 
> to get the best results with Arches Infinity paper. The darkest 
tones are pretty blocked up 
> and I wanted to linearize a profile. I have printed and measured a 
21 step-wedge test 
> print. I have dropped this into Create_ICC_Profile, but do I simply 
use this profile when I 
> print in order to open up the shadows? Or is there something I need 
to do to linearize this 
> profile before I use it? I've looked for a recent post to give 
basic instructions and have 
> found none, so a reference or any help would be greatly 
appreciated! Thanks!
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "JensGerbitz" <jensgerbitz@> 
wrote:
> >
> > Hi everyone,
> > 
> > I'm in the process of linearizing QTR curves per the Eye-One-
> > ReadMe.pdf found in the QTR Eye-One folder.
> > 
> > So far I have been able to create a .txt file with a graph from a 
> > scanned Step-21x4-random.tif printout (on HM PR 188), and then 
> > creating the graph by dragging the .txt file onto QTR-Linearize-
> > Data.exe.
> > 
> > However, I'm lost starting at the "Linearize a QuadToneRIP Curve" 
> > section.  I understand what the goal of the process is, but I how 
do 
> > I "...simply create the ink description file, doing the 
> > partitioning."?  Is this done in the QTR Curve Creator under 
> > the "Gray Curve" tab or under one of the Toner Curver tabs?  If 
so, 
> > are the numbers given in the article for GRAY_SHADOW and 
> > GRAY_HIGHLIGHT fields the ones I should use (8 & 6 respectively)?
> > 
> > How do I make the quad curve?  Is the Step-21-gray stepwedge 
created 
> > from the new quad curve?
> > 
> > I figure these are enough question for the moment, appreaciate 
any 
> > help!
> > 
> > Cheers,
> > Jens
> >
>