[sane-devel] Is --resolution x? y? or x and y ?

[m. allan noah]

The frontend program can only do whatever options the backend exposes.
Since none of us wrote the brother backend, none of us can answer your
specific question.

allan

On Mon, May 5, 2014 at 3:34 PM, Sean Darcy <seandarcy2 at gmail.com> wrote:
> I'm trying to scan from a Brother MFC7360N. The specs say the max optical
> scan resolution is 600 x 2400.
>
> scanimage -A
> scanimage: rounded value of br-x from 215.9 to 215.88
> scanimage: rounded value of br-y from 355.6 to 355.567
>
> All options specific to device `brother4:net1;dev0':
>   Mode:
>     --mode Black & White|Gray[Error Diffusion]|True Gray|24bit Color|24bit
> Color[Fast] [24bit Color[Fast]]
>         Select the scan mode
>     --resolution 100|150|200|300|400|600|1200|2400|4800|9600dpi [200]
>         Sets the resolution of the scanned image.
>     --source FlatBed|Automatic Document Feeder(left aligned)|Automatic
> Document Feeder(centrally aligned) [Automatic Document Feeder(left aligned)]
>         Selects the scan source (such as a document-feeder).
> ................
>
> I've tried:
> scanimage -vvv --format pnm -x 215.9 -y 279.4 --mode '24bit Color' -d
> 'brother4:net1;dev0' --x-resolution 100 --y-resolution 200 --source FlatBed
> -p
> scanimage: value for --x is: 215.9
> scanimage: value for --y is: 279.4
> scanimage: unrecognized option '--x-resolution'
> ........
>
> So it seems that if the backend doesn't expose --{xy}-resolution it doesn't
> exist.
>
> If I set --resolution to to 100, do I get 100 x 100 ? 600 -> 600 x 600 ?
>
> But if 1200, do I get interpolated X 1200(optical 600) and optical Y 1200 ?
>
> sean
>
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