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Digital BW, The Print

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Re: Using 'qacvraw' in QuadtoneRIP

2003-08-20 by Tom

Howdy Roy!

I should have guessed that 'qmerge' made the most sense!!!

so I guess I missed something about the profile generator, because I
thought converting existing curves that I know work well would be a
quick solution compared to starting from scratch.

I will go back and look for what I missed!

Thanks,

Tom



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Roy Harrington"
<roy@h...> wrote:
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tom "
<pouty_bob@y...> 
> wrote:
> > Howdy All!
> > 
> > I am trying to convert a .acv curve to QTR curve.
> > 
> > 
> > I've gotten as far as creating the raw 16 bit file with the .acv curve
> > applied, and I understand the basics of the example in the getting
> > started file:
> > 
> > eg:  qacvraw   cmyk-16.raw  2  >magenta.out
> > 
> > here are my questions:
> > 1. do you run this for each channel?
> > 2. what happens next, where/when do I reassemble the four new channel
> > files into one curve to select in the dropdown list..?
> > 
> > in general, is anyone having success yet with QTR and a 2000P?
> > 
> > Thanks, 
> > Tom De Carlo
> 
> Hi Tom,
> 
> It looks like you are getting down into the guts of putting curves
together.
> If what you want to do is completely do all the curve design that is
fine.  The
> disadvantage is that you bypass all the other features in the
profile generator.
> 
> So to answer your questions:
> 1) Yes, you need to make a curve for each separate ink channel. 
With a 4 ink
> printer one cmyk.raw file will do.  With more channels I'd suggest
one cmyk
> for the dark inks and one for the light inks.
> 
> 2) Once you have individual files for each of the channels you need
to merge
> them together with qmerge to make a full curve set (i.e. a .quad
file) and
> place it into the correct CurveDropBox subfolder and run the install
curves script.
> 
> All this is a bit tedious so its best done in a shell script.  If
this is at least
> somewhat familiar you should check out the quadprofile script in
/usr/local/bin
> and see an example of how this is done.
> 
> Roy

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