[sane-devel] scanimage + Canon + Mac OS X = poor resolution

Stef stef.dev at free.fr
Sat Dec 1 06:52:05 UTC 2012

On 01/12/2012 06:46, Jerry Krinock wrote:
> I have a Canon LiDE30 scanner which gives high-resolution images when I use it with an old Mac running the CanoScan Toolbox.  But when I use it on a new Mac running Mac OS X 10.8 and SANE, with the scanimage command-line tool, I get an very poor resolution of about 2.1 pixels/mm (55 pixels/inch).
> Here is my command:
> scanimage -d plustek:libusb:001:003-04a9-220e-ff-00 -x 220 -y 280 -B -p --mode=Gray --format=tiff > "/Users/jk/Documents/NewScansIn/Pretty Picture.tiff"
> I don't see any options in man scanimage to control resolution.  Is there some other way I can fix it?
> Thank you,
> Jerry Krinock

     scanimage -d plustek -A -n

     will give you the full list of the backend's options, including the 
'--resolution' option.


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