QTR-Quadtone RIP

Carl,

There is an input and an output side to color management with
ImageNest. On the input side you can choose to select a profile or use
an embedded, it has an affect on the image which ImageNest then RIPs.
If you RIP into a PDF to view, you can see these changes in the PDF.
ImageNest is handing off a PDF to QTR. If you can not see the changes
in the PDF, or if you see that it is not black in the PDF - but is so
when it prints - then there may be some other issue involved.

QTR takes this "input" PDF and prints it with its own output
management in the form of Curves.

I think that what you are trying to do (maybe?) is attach an OUTPUT
profile to the image.  In that regard, yes ImageNest can not affect
the output side of things with QTR using a custom output Grayscale ICC
profile. That is where you let QTR manage the output.

I think we are on the same page again - just having a different think
about using an output grayscale ICC in place of an input grayscale ICC. 

RGB is different.

Jon



--- In QuadtoneRIP@yahoogroups.com, Carl Schofield <list@...> wrote:
>
> Jon,
> 
> Yes, I have the latest (1.0.1) version of ImageNest.  If you are  
> setting "Printer manages color" then no color management is occurring  
> because Imagenest will pass off the file tagged either with an  
> embedded source profile (e.g.. gray gamma, QTR gray, etc.) or one that  
> it assigns from the list of default source profile choices (RGB, CMYK,  
> or gray) if the file is untagged.  It will not convert the file to a  
> printer profile (QTR Create-icc profile) in this case.  If you choose  
> Imagenest color management then it will convert the image to the  
> selected printing profile (this is where you choose a QTR icc profile)  
> from the drop down list under the check box for ImageNest Color  
> management.  This is how color management works on the Mac when  
> printing to QTR from Photoshop using Create-icc profiles and I assume  
> that ImageNest follows the same convention in applying color management.
> 
> Carl
> 
> 
> On Mar 14, 2008, at 8:46 AM, Jon Cone wrote:
> 
> > Carl,
> >
> > I'm not getting that result with a tagged image either. I am able to
> > print and the results are indicative of the preview. So one of us or
> > the other has a bug! I hope its you and not me, because I like this
> > feature!
> >
> > Do you have the latest version? You can check or uncheck "Use embedded
> > ICC profile."  Also, correct use is "Printer Manages Colors" rather
> > than "ImageNest Manages Colors." The idea being letting ImageNest hand
> > off the job (with different input profile) to QTR.
> >
> > Jon
> >
> >
> >
> > --- In QuadtoneRIP@yahoogroups.com, Carl Schofield <list@> wrote:
> >>
> >> Jon,
> >>
> >> You are correct, but the key word is untagged image.  If you open a
> >> grayscale image that has been tagged in Photoshop with a source space
> >> profile like gray gamma 2.2 and then specify a gray QTR printer
> >> profile in ImageNest then it will not work and you get a black box in
> >> preview and in print.  The same tagged image will preview and print
> >> correctly if an RGB QTR printer profile is used.
> >> Carl
> >>
> >> On Mar 13, 2008, at 10:21 PM, Jon Cone wrote:
> >>
> >>> Carl,
> >>>
> >>> I find that QTR responds accurately to the preview of ImageNest  
> >>> when I
> >>> let ImageNest assign a grayscale ICC to an untagged image. Are you  
> >>> on
> >>> 1.0.1?
> >>>
> >>> Jon
> >>>
> >>>
> >>> --- In QuadtoneRIP@yahoogroups.com, "Carl Schofield" <list@> wrote:
> >>>>
> >>>> Yes, thanks Jon.  I have also been using ImageNest with QTR and it
> >>> works very well, but if
> >>>> QTR users want to let ImageNest handle color management via custom
> >>> icc profiles they
> >>>> should be aware that it is necessary to use the RGB version of
> >>> Create-icc profiles.  If you
> >>>> try to use a gray icc profile the image will preview and print  
> >>>> solid
> >>> black.  Two features I
> >>>> would like to see them add are softproofing and the ability to save
> >>> custom layouts for re-
> >>>> use.
> >>>>
> >>>> Carl
> >>>>
> >>
>