[sane-devel] Can I change resolution offerings for Epson V200 Photo scanner?

[Olaf Meeuwissen]

Putting this back on the list.

Michael Nagel <ubuntu at nailor.devzero.de> writes:

> Thanks, Olaf, I will forward your comments!
>
>>> A: "resolution" set to some value
>>> B: "x-resolution" and "y-resolution" are set to some value
>>> Ususally this is not a problem, but the values for A are very limited
>>> with your scanner, see the next list.
>> That is to be expected as it is the intersection of the x-resolution and
>> y-resolution lists.
>
> If 2CV67's numbers are correct that answer is not completly correct.
>
> Epson Perfection V200 scanimage
>     --resolution 300|2400|4800dpi [300]
>         Sets the resolution of the scanned image.
>     --x-resolution 75|300|600|1200|2400|4800dpi [300]
>         Sets the horizontal resolution of the scanned image.
>     --y-resolution 100|200|300|400|600|800|1200|1800|2400|3600|4800|6600|9600dpi [300]
>
> The intersection would be 300|600|1200|2400|4800 but 600 and 1200 are
> missing from the list generated by scanimage.

Good catch.  My explanation was not quite complete.

If you try the help with --source="Transparency Unit", you should see
slightly different lists of --x-resolution and y-resolution values.  The
list of --resolution values is the intersection of these lists and those
above.

Hope this helps,
-- 
Olaf Meeuwissen, LPIC-2           FLOSS Engineer -- AVASYS CORPORATION
FSF Associate Member #1962               Help support software freedom
                 http://www.fsf.org/jf?referrer=1962