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QTR-Quadtone RIP

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Message

Re: Roy's working space blocks up shadow detail? Why use it?

2006-06-06 by John Vitollo

--- In QuadtoneRIP@yahoogroups.com, "prof_mgt551" <prof_mgt551@...> wrote:
>
> Hi John,
> 
> Thanks for sharing your ideas on this issue.  I have not created any
> curves and am using the curves provided with QTR or posted on this forum
> (Ilford Smooth Pearl). Also, I am using a Windows XP system, so I have
> to convert the file to the ICC profile in Photoshop that I want to
> print. Sorry, but I am new to QTR and  am a little confused by your
> suggestions.

OK...I'm not sure how QTR is set up with Windows as I'm on a Mac.

But I give some educated guesses...

>> Firstly strip the linearization out of the stock profiles you would
like to use, then reinstall
> them.
>Are you referring to QTR curves when using the word "profiles"? (I think
of profiles as ICC profiles).  If so, then to strip out the
linearization, do you mean to open the curve in QTR Curve Creator and
under the linearization tab clear the numbers? To reinstall, does this
mean save the adjusted curve or does it mean use the "create curve"
button?

It's confusing for sure...let's use "curves" for QTR paper curves and "profiles" for ICC 
profiles from now on.

Since you have a densitometer you can re-linearize the stock curves that came with the 
download. You must strip the linearized info from the curve. Just how you do that on 
Windows I'm not sure but once you do use the new curve to print the 21 step ramp. As 
mentioned do not convert the 21 step ramp and do not color manage the Print with 
Preview.

>What is the difference between the "QTR-Linearize-Data" and the "QTR-Create-ICC" 
scripts in the eye-one folder?


 "QTR-Linearize-Data" is the script that produces linearized values that you have to copy 
and paste into the curve file that was stripped of linearized info early.

"QTR-Create-ICC" is the script that produces the ICC profile to print with using color 
management in Photoshop...meaning softproofing and using the ICC printer profile in 
"Print with Preview" window.

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