[Desktop_printing] Smooth dithering
ku.b at gmx.de
Fri Feb 17 13:02:16 PST 2006
thanks for the hint. I will switch to the gs mailing list to discuss there
Ghostscript details. Hope that is ok.
What means SIMD?
+ development for color management
+ imaging / panoramas
+ email: ku.b at gmx.de
Am 17.02.06, 11:35 -0800 schrieb Ralph Giles:
> On Fri, Feb 17, 2006 at 07:21:06AM -0500, Robert L Krawitz wrote:
> > I believe that the latest version of EvenTone dithering that Raph
> > Levien has released can do this; I just haven't had time to study the
> > code and implement it. This is very much something I want to do; if
> > anyone has the time to volunteer for this it would get it done a lot
> > faster.
> The output I've seen looks really, really good. But my understanding is
> that careful development of a colourmap for each device (and paper) is
> important not just for accurate colour rendering but for achieving
> smooth and even dither tone.
> A version of Raph's work is in the recently released GPL Ghostscript
> 8.50 (as well as the AFPL head of course) along with a profile for
> the Epson 2200:
> If anyone wants to give it a try. There is a patent warning in the code;
> but the technology may be used royalty free in free software.
> Also, IIRC, one really wants SIMD accelleration when driving large
> format (or just fast) printers. The latest (unreleased) version of
> the engine contains some; Raph said he'd consider releasing it as well
> if there's interest.
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