Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "Austin Franklin" <
darkroom@i...> wrote:
> > Austin,
> >
> > Do you believe that the driver of a CMYK printer sends precisely 64 levels
> > of gray to each channel or that a CcMmYK printer sends 42.7 levels to each
> > channel?
> 
> Martin,
> 
> No, that's not how dithering works.  It derives a dither pattern that
> consists of dot placement, and color...there is no separation into four
> channels as you say.  Each ink is either a dot or not, 256 levels aren't
> sent to each color ink.
That's where we part Austin. I'm repeatedly discussing an aproach that 
depends on the ability to do precisely that. We are far from the 
dithering stage yet. I can easily manipulate a single channel grayscale 
256 level file into a four channel file with all 256 original tones in 
all four channels precisely. And I can send that file to a printer and 
get exactly that on paper, all the way from 0 to 400% ink.
There is no concievable reason to do so, but the system would allow it.

> input/output match...as I know you don't.  I only expect Piezo to give me
> 100 tones in fact...
I'm certainly glad it gives you more. The 1% change at the border of 
each box to the next in the Z's file is clearly visible on paper.
Tyler

ok, are we boring everyone here to tears yet? At least it hasn't caught 
up with the D60 (or whatever it was) thread.