> try the -density flag to convert. -density 300 -units PixelsPerInch
is what I use when scanning to TIF or PNG. (Substitute '300' for appropriate scan DPI.) -----Original Message----- From: sane-devel-bounces+dpoole=marvell....@lists.alioth.debian.org on behalf of m. allan noah Sent: Fri 12/19/2008 11:27 AM To: gobo Cc: sane-devel at lists.alioth.debian.org Subject: Re: [sane-devel] help with improving text scans On Fri, Dec 19, 2008 at 12:58 PM, gobo <gobo770 at gmail.com> wrote: > the default for scanimage is 75dpi, and that is barely readable. i'll > certainly give your gimp setting change a try. > > but, can i also do this in the shell? can i take an image scanned > with --resolution=150, funnel it through another utility (or two) and > end up with a pdf containing 8.5x11" hi-res pages? you are confusing the dpi of the scan and the dpi of the print. If you scan at 150, you should print at 150, if you want the size to match. Since the scans as the come from sane likely wont have the dpi embedded, you will have to tell someone in your chain of progs what the original scan dpi was. try the -density flag to convert. allan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20081219/7c4846f2/attachment.htm
