On 8/30/13 12:23 AM, Stephen George wrote:
On 30/08/2013 1:49 PM, Ken Springer wrote:
On 8/29/13 8:08 PM, Steve Litt wrote:
When doing stochastic screening, the ideal is to screen at the same
dpi as the final printing device. Next best is an even multiple.
I.E. screen at 300 dpi for printing on a 600 dpi printer. You also
have to decide on the finished physical size of the graphic before you
start.
I used to use the regular graphic in all the drafts. When I was
satisfied with everything, then I applied the stochastic screen.
I just searched Inscape+"stochastic screening" and got a bunch of
useless stuff including an anti-Obama site (whaaaaat, how'd Google do
that?). Then I did the same thing for LaTeX, nothing ontopic for us.
Same thing with "Computer monitors". One site said most inkjet printers
use stochastic screening.
I suspect all home printers and laser printers now have some kind of
stochastic screening routines in their printer drivers. But, I've not
tested the idea.
An interesting discussion, but a question about Stochastic screening
from someone who has only just heard of it.
Is this screening something done at print driver level, and not a
screen applied to the graphic itself prior to importing? ... therefore
the same pdf file could be printed both with and without stochastic
screening if the printer/driver support it?
When I started with stochastic screening, printer drivers didn't have
that ability. To write my reply, I had to do a bit of research, it's
amazing how much you forget when you don't work with things for a long
time. I found out that stochastic screening is also called frequency
modulated screening, and error diffusion screening. After I started
using stochastic screening on the image itself, HP started having error
diffusion features of printing.
I never applied the screening to the entire document, only to images.
Then I placed the screened image into the document, and printed.
Personally, I doubt that doing the screening to text is even worth the
effort.
My guess would be you could do either or both. But I know there are
expensive screening software out there, or so it seemed with just a 10
minute investigation.
--
Ken
Mac OS X 10.8.4
Firefox 23.0
Thunderbird 17.0.8
LibreOffice 4.1.04
