Digital BW, The Print

on 10/15/02 2:31 PM, "Shilesh Jani" <shilesh.jani@...> wrote:

> What you see there in the Piezo print IS the true
> cyan color of that printer, as alluded to by Cone.  But that is NOT
> the color (density or hue) you see in ANY part of the Epson driver
> print!  So other inks are being used, and I am guessing all inks are
> being used.  What does that mean?  Does the fact that the Epson
> driver uses more inks than the Piezo driver for any given tone make a
> difference in the final output?  That is the question.  Will one of
> these drivers produce smoother gradients?  Less textured dither?

Quads done in the old school CMYK style are not necessarily the "right" way
- it is just one way. Driving inks through a CMYK driver does not actually
need to be done via overlapping bell shaped curves either. It is just one
way that is easy to control and create tables for presets. There may be
other ways which are just as or more effective. Perhaps there is a way to
"save" ink or a way to allow for better compatibility with slightly
irregular printers.

It is striking how such different processes like tweaked RGB and controlled
CMYK can end up looking so similar as final prints, yet be done so
differently in their architecture.

Definitely there is something worth exploring with a CMYK driver using some
of this RGB tweak process. We might parse the output from an EPSON driver
using these RGB tweaks to see how it is handling the black and the cyan and
see if we can pick up something useful for the next version of
PiezographyBW.


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may your highlights be dotless
and your tonal scale smooth,


Jon Cone
jon@...
Piezography(tm) brand software and inks
http://www.piezography.com
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