Digital BW, The Print

Dear Austin, When I asked about the rosettes you changed that name to moire
and I went with it. They are two different things and we were talking about
two different things. When the exchange (I've included at the bottom)
changed from rosettes to moire that is where I got confused. You said that
if I was getting moire patterns the halftone algorithym was not very good...
but I was referring to rosettes (not moire, sorry). So I'm going to re-ask
my question to avoid confusion. ;-)

Can you print from offset press without visible rosettes while using an
ordered dither... but without using stochastic screening?

Thanks, Carolyn

............

C wrote:
> Stochastic printing does not use a grid as halftone does, that is why it
can
> achieve smoother prints, it is random, there are no rosette patterns.

A wrote:
That (the Moire patterns) can be eliminated in standard cell based halftone
process.  What you are referring to as "halftoning" is actually called
"ordered dither", and as I said, is only one of many algorithms that can be
used in halftoning.

Above is where I asked about Rosettes and you responded with Moire. So I
continued to respond using Moire but I did mean Rosettes.

C wrote:
> I'm curious about how they can deliver a print without the moire pattern
> visible while using a halftone technique other than stochastic...
> There must
> be other techniques I'm not familiar with.
>
> So offset press prints with visible moire patterns are "ordered
> dither", the
> prints without are "stochastic dither"... or something else?  Then are
> inkjet prints "stochastic dither" or are they a different beast
> altogether?

A wrote:
If you are getting moire patterns, then the halftone algorithm is not very
good.  As I said, ordered dither doesn't have to give moire, and there are
different methods to do ordered dither too...

Above I totally agree with you when you are referring to moire patterns, but
thought we were talking about rosettes...

Bored of me yet?