[sane-devel] Poor quality with Plustek OpticBook 3600 and XSane 0.998

[Stef]

On 23/01/2014 21:45, Jens Herrmann wrote:
> Hello,
> I found today that there is a huge difference in quality between the 
> original vendor software (Windows) and XSane (Ubuntu) for the Plustek 
> OpticBook 3600. While the first one looks quite well the second is 
> barely readable.
>
> Take a look at
> http://img5.fotos-hochladen.net/uploads/examplescanbwlri1gw0dp5.png
> for the scan black/white.
>
> and at
> http://img5.fotos-hochladen.net/uploads/examplescangr1hu8el7vzd.png
> for the scan grey.
>
> (all scans with brightness 0, contrast 0 and gamma 0)
>
> Is this a known issue? Any comments?
>
> Regards
> Jens
>
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     Hello,

     the second picture has been processed through some data processing 
filter. While this is not the primary objective of a backend to have 
such image enhancement, you have some options in the genesys backend 
that will let you tweak the line-art result:
      --swdespeck
      --threshold
      --disable-dynamic-lineart

Regards,
     Stef