[sane-devel] Avision scanimage & image quality

[Richard Reina]

I am not able to use lineart.  I although the scanimage --help --device lists it as a valid mode for my scanner.  I tried it as LineArt, lineart, Lineart, Line Art.  All to no avail.  What is a threshold option?  What I am trying to do is make the print (which is often light ) on the document, darker without having to walk over to the photocopy machine and copy it first.

Any help would be greatly appreciated.

Thanks,

Richard

"m. allan noah" <kitno455 at gmail.com> wrote: stop using the halftone (dithered binary) mode. use a lineart
(standard binary) mode instead. if that is not enough, then do

scanimage --help

and look for threshold options, or switch to grayscale mode.

allan

On 7/24/07, 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?
>
> Thanks,
>
> Richard
>
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