QTR-Quadtone RIP

I realise that people are busy at this time of year, but I was hoping
to an answer at least to question 1.  I'm not quite getting WYSIWYG
results either way, and I'd like to know which way I should focus on.

Ferdinand


--- In QuadtoneRIP@yahoogroups.com, "ferdinand_paris"
<ferdinand_paris@...> wrote:
>
> Qu.1:  This thread started buy asking what type of file to drop onto
> QTR-Create-ICC[-RGB].exe. I have a related question.  I print the
> target and measure it and I get a text file from the MeasureTool.  I
> drop this target onto QTR-Linearize-Data.exe to get the linearisation
> data.  So far so good.  
> 
> But if I want to create an ICC profile, is it this exact same text
> file that I also drop onto QTR-Create-ICC[-RGB].exe?  Or is it a
> second text file that I get from printing and reading a target printed
> *WITH* the newly derived linearisation data? 
> 
> I've read the three pdf help files and trawled the archives, and this
> point is not entirely clear to me.  They read like I should use the
> first text file, but when reading the very useful file "ICC Info.txt"
> by Roy in the files section, it suggests that ICC profiling is in
> effect profiling the QTR driver.  This suggests to me that I should be
> using the second text file derived from printing a target using a
> linearised curve, non?
> 
> 
> Qu.2:  I created both grey and RGB ICC profiles and stored them in the
> correct folder, but when I opened Photoshop I saw only the grey
> profile.  I discovered that this is because although the two profiles
> have different file names, they have the same internal profile name. 
> Is this intentional?  I would have thought that the RGB profile would
> have "-RGB" appended to its internal name.  
> 
> 
> Qu.3  How many people are printing via Qimage, and are using its CM
> options to convert to a QTR profile, and how many others are doing
> profile conversion prior to reaching Qimage?  
> 
> By way of background, I was around when Roy & Mike first got Qimage
> recognising QTR ICC profiles, but have been largely absent from the
> debate since then.  Like Ernst, based on experiments that I did at the
> time, I tend not to trust Qimage's CMS for B&W.   I've re-read the
> archives in this forum on this topic, and particularly from around the
> middle of the year.  It seems to have a lot to do with rendering and
> BPC.  The quote from Roy below seems important. Is it as simple as
> using BPC for the generic QTR profiles, and not using it for custom
> profiles?
> 
> Ferdinand
> 
> --- In QuadtoneRIP@yahoogroups.com, "Roy Harrington" <roy@> wrote:
> >
> > (I should mention that the generic QTR-Gray Matte/Photo Paper 
> > profiles were done as XYZ matrix profiles and do not have the BPC 
> > builtin -- they depend on the CMS).
> > 
> > Roy
>