Digital BW, The Print

Walt,

Thanks for the information, that clarifies it somewhat. 

I have an X-Rite where I'll have to create the text file manually.  What
format is used?  I see what appear to be some sample files in the i1 folder,
but it's not really clear how I'd plug in the L values for the 21 steps.
Since I only have the 2.3.1, I may have to just wait until that version is
fixed.

Paul
www.PaulRoark.com 




> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of wwodets
> Sent: Monday, October 17, 2005 7:04 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] ICC v. Transfer Function in Epson driver
> 
> Paul,
> 
> To try and clarify:  The Create ICC.exe is a "droplet" program.  You
> take the text file with the data and drag and drop it onto the
> program (and not a shortcut to the program). Create ICC will then
> create the ICC profile in the same folder as the text file.  When you
> do this, a window will open momentarily while the program is creating
> the ICC profile,  but the program does not "run."  I keep a copy of
> the program on my desktop (not a shortcut to the program) and then
> drag and drop the text file on it.  I then have the ICC profiles on
> the desktop and move them to the color folder.
> 
> There is a text file in the Eye One folder of the QTR folder and it
> explains the use of the program.  Although Steve has described
> something different, I had problems with the output (to the printer)
> with Create ICC 2.3.1, so I have returned to the version in QTR
> 2.3.0.  In a post on the QTR forum, Roy actually suggested using the
> 2.3.0 for output until he corrected the problems in 2.3.1.
> 
> Best,
> Walt
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
> <paul.roark@v...> wrote:
> >
> > Carl,
> >
> > Are you using Windows XP?  I think one problem I'm having is that
> the Create
> > ICC program doesn't seem to want to run at all.  I assume this is a
> > different program than the Create Curve program -- or am I totally
> confused?
> >
> > Paul
> > www.PaulRoark.com
> >
> >
> > > -----Original Message-----
> > > From: DigitalBlackandWhiteThePrint@yahoogroups.com
> > > [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf
> Of Carl
> > > Schofield
> > > Sent: Monday, October 17, 2005 5:02 PM
> > > To: DigitalBlackandWhiteThePrint@yahoogroups.com
> > > Subject: Re: [Digital BW] ICC v. Transfer Function in Epson driver
> > >
> > > Paul,
> > >
> > > A simple text file with a column of Lab L values or density values
> > > measured from a 21 step wedge is probably all you need (use a
> column
> > > heading of D for density values or L for Lab L values).  Just drag
> > > and drop the text file onto the Create-icc script and it should
> > > create both the icc profile and a text file with a plot of the
> data.
> > >
> > > Carl
> > >
> > > On Oct 17, 2005, at 8:42 PM, Paul Roark wrote:
> > >
> > > > Steve,
> > > >
> > > >
> > > >> ...
> > > >>
> > > >
> > > >
> > > >>> So, does black point compensation mean the curve hits (0,0)?
> > > >>>
> > > >>
> > > >> Yes.  ...
> > > >>
> > > >
> > > > OK, BPC is used to take care of the end point issues, as I
> > > > understand it.
> > > >
> > > >
> > > >
> > > >> ... in XYZ (for B&W we only care about Y)
> > > >>
> > > >
> > > > I thought Y in CIE XYZ was green.  Or do you mean the Y in xyY?
> > > >
> > > >
> > > >> ...
> > > >> BPC scales the data such that the curve begins at 0,0.
> > > >> So when you send pixel value 0 to the printer
> > > >> it gets left at 0 and hence prints as dark as the printer
> possibly
> > > >> can.
> > > >>
> > > >
> > > > This is what I'd want.
> > > >
> > > >
> > > >> ...
> > > >>
> > > >
> > > >
> > > >>> Is the QTR Curve Creator Linearization tab a look-up take
> interface?
> > > >>>
> > > >>
> > > >> Now it is.
> > > >>
> > > >
> > > >
> > > > I think I'm only able to open the Curves Creator and not the
> > > > "QTR-Create-ICC.exe."  Is this just a Mac program, or does it
> > > > require i1?
> > > > (It's in the i1 folder.)
> > > >
> > > >
> > > >
> > > >
> > > >> ... [Roy's] aim is to proof hue and luminance correctly.
> > > >>
> > > >
> > > > Ultimately, that could be useful, but for the B&W I'm targeting
> now
> > > > it's
> > > > complexity that gets in the way of the basics of B&W printing.
> > > >
> > > >
> > > >> ...  ICC profiles have the advantage
> > > >> that people can set up soft proof in the normal fashion.
> > > >>
> > > >
> > > > That sounds like another complex story.  If we're in PS the
> custom
> > > > dot gain
> > > > curves do it, but we do need to get a simpler method.
> > > >
> > > >
> > > > ...
> > > >
> > > >>> Is there a place that describes the specific ways in which a
> > > >>> Windows XP user
> > > >>> can use QTR to make an ICC that can be used in the Print with
> > > >>> Preview
> > > >>> workflow and then the Epson driver?
> > > >>>
> > > >>>
> > > >> Not sure but it is really very easy.  Print a step wedge with
> the
> > > >> workflow
> > > >> of your choice eg Epson Adv B&W with a particular set of
> > > >> settings.  Scan
> > > >> the
> > > >> step wedge with an EyeOne or other device that will provide the
> > > >> sort of
> > > >> data
> > > >> QTR Create ICC can read. ...
> > > >>
> > > >
> > > > I'm not sure I can even open Create ICC.  So far I just get a
> > > > momentary
> > > > flash on the monitor.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >>> Are those ICCs useable in the Print with Preview procedure
> > > >>> with the Epson driver?
> > > >>>
> > > >>
> > > >>
> > > >
> > > >
> > > >>   Yes I use them all the time.  I have profiled my Epson Adv
> B&W
> > > >> settings, one for each hue - neutral, warm, sepia and cool.  I
> do
> > > >> not mess
> > > >> with the darker and other settings (other than hue).  I prefer
> to
> > > >> edit the
> > > >> image in PS rather than in the driver which has limited editing
> > > >> ability.
> > > >>
> > > >
> > > > The possible advantage with using the driver controls as much as
> > > > possible is
> > > > that they may well be doing hardware linearization in the
> driver --
> > > > with no
> > > > loss of grayscale steps.  The ICC or TF in the Print with
> Preview
> > > > -- or
> > > > anywhere in PS -- loses some information with each
> transformation.
> > > >
> > > > Interesting stuff, but I don't seem to have an easy way to make
> the
> > > > ICCs at
> > > > this point.
> > > >
> > > > Paul
> > > > www.PaulRoark.com
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > >
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> 
> Please visit the Group Homepage to check the Files, and other resources as
> they are often being updated.
> 
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
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> If you wish to receive no emails or just a daily digest, or you wish to
> unsubscribe, please edit your Membership preferences by visiting this same
> page.
> 
> Please follow these basic guidelines:
> - As threads develop, trim off excess portions of earlier messages to keep
> them short.
> - Good manners are required at all time. No personal attacks or flames.
> Hostile, aggressive or argumentative users may be removed from the
> membership without notice.
> - Keep your posts and threads related to the group topic of digital B&W
> printing. Users who persistently make off-topic posts may be removed from
> the membership.
> - By posting on this forum you agree to abide by the group rules and
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