Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "dgabbe2001" 
<dgabbe@a...> wrote:
> Roy,
> 
> With the old Piezo plug-in, the more resolution it had, the more it
> could do.  I frequently printed files at 720 to 1100 dpi.  However,
> that strategy w/QTR seems to yield long rasterization and print times.
>  For a  1280, running at 1440x720, what resolution would you recommend
> sending.    Is there a general rule for determining the resolution for
> QTR (or I realize, GimpPrint)?  Thanks,
> 
> Dave G.

Hi Dave,

In general I've been mostly using resolutions between 360 and 720ppi
in the file.  The higher resolutions are taken advantage of.
What actually happens is the file is resampled to the dpi resolution
of the final print i.e. 1440x720 on the fly.  This is done prior to QTR and 
gimp-print.  I think Jaguar used a simple nearest-neighbor algoritm
but Panther uses some interpolation -- probably bi-linear.  The
good news is that it can give very good detail but the downside is
that it takes more cpu time.
In my case I always have resolution to spare so I just give it what I 
have.  If I was starting with a lower res I'd use the more sophisticated
upsizing of Photoshop to get to at least 360.  The best thing is to
try it and see what works best for your images.

Roy