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Digital BW, The Print

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Message

RE: [Digital BW] Number of tones was Re: Do inkjets dither or not?

2002-08-04 by Austin Franklin

Tyler,

> > How do you feed in 256 graytones, and now claim that each ink
> now has 256
> > graytones...that's a huge leap of something, and, at least to
> me, makes no
> > sense.
> Austin, it is simple, there are a number of ways. You simply duplicate
> the channel and print through a multiple channel driver.

I believe you're missing my point...  I KNOW that there are many ways of
"creating" intermediate tones...  I simply don't believe Piezo prints 1000
tones, period.  It's a physical impossibility in the system we are using.
There are too many variances in the control of many aspects of this, that
doing so is impossible, in my estimation...and no, I haven't proven so...but
it, for me, is simply practical reality.

As I've suggested.  Make a 256 tone Z pattern....and see if you can
distinguish all 256 tones.  Then do a 512 etc.  SEE if it does it.  The 100
Z pattern is barely discernable over all 100 tones, some more
distinguishable than others...and that leads me to believe that a pattern
10x that would not be discernable at all.

It's interesting that the "Proof of Piezography" only has %5 and %1 tonal
variation...if it was capable of %.1 variations, then I'd expect they would
want to "show it off"...

Austin

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