[sane-devel] Avision scanimage & image quality

[Erik P. Olsen]

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?

-- 
Erik.