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Digital BW, The Print

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Re: [Digital BW] ICC v. Transfer Function in Epson driver

2005-10-20 by wwodets

My experience too. 



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield 
<scho@m...> wrote:
>
> Paul,
> 
> I thought the steps had to be evenly spaced, but maybe not if you  
> were able to generate an icc profile.  Can you post the text file  
> that was generated when you made the icc profile?  I'm just 
wondering  
> how Create-icc  treated the uneven steps.  My experience has been  
> that the icc profiles improve shadow separation in 2400 ABW 
prints,  
> rather than compress the data.
> 
> Carl
> 
> On Oct 19, 2005, at 10:37 AM, Paul Roark wrote:
> 
> > Steve,
> >
> > I thought maybe my, in my view too-compressed, low values might  
> > just be an
> > artifact of a bad un-adjusted distribution and too few points.  
So,  
> > I tried
> > the Create ICC and Print with Preview workflow with a printing  
> > setup that
> > had a reasonably smooth low end.  I took readings at every 1% 
point  
> > between
> > 100% and 95%, then at 5% to 80%, and then at 10% intervals.  I 
was  
> > also
> > curious if the program needed even distributions of input data.
> >
> > The results were not much different than my previous attempts.   
> > Whereas the
> > un-adjusted printing setup separated all the 95% - 100% points  
> > reasonably,
> > the output adjusted with the Create ICC compressed the dark tones 
and
> > posterized the 95% - 100% range.
> >
> > I don't know what caused this, but it's not, in my view, an 
output  
> > that
> > efficiently utilizes the grayscale file information.
> >
> > Paul
> > www.PaulRoark.com
> 
> 
> [Non-text portions of this message have been removed]
>

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