Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, John 
Labovitz <johnl@j...> wrote:
> 
> I'll elaborate on this.  Apologies for the length.
> 
> While by no means do I have what anyone would call a "driver," 
I have been
> playing with gimp-print's ability to fully control each ink 
separately.
> 
> First, I should note that gimp-print 4.2 (the current release) has 
a partial
> control which is somewhat confusingly called "Raw CMYK."  As 
Tyler noted,
> some color munging is happening even with this "raw" mode, 
which is probably
> the fault of OS X's inherent and insistent color management.  
It's also by
> necessity filling in "appropriate" values for the light-cyan and
> light-magenta positions on 6-color printers.  All this translation 
causes a
> few problems doing quadtones.  But even that's better than 
trying to fool
> the Epson driver by sending it RGB data, as most workflows 
attempt to do.
> 
> Gimp-print 4.3 (the "development" release) has full control over 
each ink
> position ("true raw" mode).  In theory, one can specify exactly 
how much ink
> is laid down in a particular ink position, completely 
independently of any
> other ink.  Or you can overlay inks precisely -- like putting a 
25% gray ink
> under the 100% black ink to get even more density than 100% 
alone.  There's
> nothing in between that's mucking with the data.
> 
...
> 
> But I'll keep folks posted as to what develops.
> 
> -- 
> John Labovitz
> johnl@j...
> www.johnlabovitz.com


Hi John,

I've been looking into doing some of the same things.  I have
been trying gimp-print 4.2 with quadtone and Raw CMYK but
I think the munging with color is a problem.

I've tried to get 4.3 up and running but have only found
source code (no binaries).    Are binaries available or better
yet instructions for the OS X compilation?  

Thanks,
Roy

roy@...
www.harrington.com