Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Olivier" <odesmais@...> 
wrote:
>
> > QTR-Create-ICC-RGB now supports the incorporation of Photoshop .acv 
> curves.
> > This allows usage of RGB Epson driver where ink partitioning is 
> done with PS curves,
> > including the linearization of the grayscale output.  This greatly 
> simplies the workflow.
> > Before, one needed to take a grayscale image, convert to RGB, apply 
> ACV curves, and then
> > print.  Now this is all included in the ICC printing profile with 
> the added benefit that
> > color management will automatically convert from the grayscale 
> embedded profile.
> > The profile can also be used for soft-proofing in most cases.
> 
> Roy, All (helpful people)
> 
> Frankly I don't understand a thing about the new ICC-RVB. I read the 
> rtf file in the download and it's Japanese to me.
> 
> First is this meant to print from PS straight to the Epson driver 
> without launching QTR (eventually advantageous for me since I run XP)?
> 
> I don't use PS curves in my workflow so this is all new. Is the idea 
> to try to partition ink with the PS curves (we're talking of the RVB 
> curves)?  If so how do you manage that ?
> 
> I also don't understand a thing about the need of the psd.raw file.
> 
> Sorry for sounding so stupid, but I'd appreciate help since I feel 
> I'm missing an opportunity.
> 
> If there're been threads about it please redirect me.
> 
> Olivier
>

The RGB version fits into two unrelated workflows.  The basic version which has
been around since the previous version is still the same grayscale profile but
uses RGB format where R=G=B.  It's mainly for those using Qimage which does
not support grayscale images.  So you print through Qimage and then QTR.

The new ACV capability is for printing with the Epson driver directly through PS.
This is the Paul Roark (and others) workflow where you take grayscale, convert
to RGB, apply some ACV adj curves and then print.  

Roy