[sane-devel] Avision scanimage & image quality

[René Rebe]

On Wednesday 25 July 2007 11:20:04 Erik P. Olsen wrote:
> René Rebe wrote:
> > On Tuesday 24 July 2007 18:29:12 Richard Reina wrote:
> >> I have an Avision AV210 that I use to scan in documents with the scanimage command:
> >>
> >> scanimage --mode Dithered --resolution 200 --format tiff > file_name
> >>
> >> Can anyone recommend syntax to darken the document it and make it more clear?
> > 
> > All color tuning, including brightness, contrast and gamma also work in the
> > Dithered mode (in the Avision backend). Btw. Why do you use dithered at all?
> > 
> > If you want automatic thresholding you can scan in Gray (or Color) and use
> > optimize2bw from ExactImage:
> > 
> >   http://www.exactcode.de/site/open_source/exactimage/econvert/
> >   http://www.exactcode.de/site/open_source/exactimage/utilities/
> 
> Can you recommend a stable release?

Of ExactImage? Yes, sure:

  http://www.exactcode.de/site/open_source/exactimage/releases/
  http://dl.exactcode.de/oss/exact-image/

or of sane-avision? :-)

Yours,

-- 
  René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
  Geschäftsführer: Susanne Klaus, René Rebe
  Sitz: Berlin, Amtsgericht Charlottenburg HRB 105 123 B
  USt-IdNr.: DE251602478
  http://exactcode.de | http://t2-project.org | http://rene.rebe.name