From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pieter Praet Subject: Re: [OT] Scanning for archiving Date: Wed, 09 Nov 2011 09:51:10 +0100 Message-ID: <87y5vpvfup.fsf@praet.org> References: <87vcqy6vtl.fsf@praet.org> <87hb2ghpzu.fsf@praet.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([140.186.70.92]:49184) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RO3t5-0001MP-EF for emacs-orgmode@gnu.org; Wed, 09 Nov 2011 03:52:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RO3t3-0006oq-U4 for emacs-orgmode@gnu.org; Wed, 09 Nov 2011 03:52:03 -0500 Received: from mail-wy0-f169.google.com ([74.125.82.169]:33168) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RO3t3-0006oi-Pl for emacs-orgmode@gnu.org; Wed, 09 Nov 2011 03:52:01 -0500 Received: by wyg24 with SMTP id 24so1645210wyg.0 for ; Wed, 09 Nov 2011 00:52:00 -0800 (PST) In-Reply-To: List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: TP , Org Mode On Sun, 6 Nov 2011 22:14:54 -0800, TP wrote: > On Sun, Nov 6, 2011 at 1:59 PM, Pieter Praet wrote: > > On Sat, 5 Nov 2011 16:35:11 -0700, Samuel Wales = wrote: > >> I used to find that 8-bit 75dpi was legible and small. > >> > > > > True. > > > > It all depends on why you're scanning them in the first place. > > > > 75dpi is fine when scanning with collaboration/quick-reference in mind, > > but for archival/backup purposes (i.e. absolute peace of mind when your > > whole collection of dead trees burns, drowns, or is simply disposed of) > > or OCR, you'll want to go with 600dpi and beyond. >=20 > One common technique is to always scan 300dpi grayscale (or color) and > use clever software to upsample to 600dpi b&w (of course somehow > segmenting scans into "picture" and "text" regions first. >=20 Upsampling defies the first law of thermodynamics? But seriously, after reading up a bit, I'm convinced :) Quite a manual process though... Could you recommend any (FOSS) software that does this automatically? > >> What ADF scanners are out there for Linux that have high quality > >> reliable ADF, [...] > > > > I wish I knew... =C2=A0If anyone on this list can think of a scanner wh= ose > > ADF doesn't require constant babysitting, I'm betting it won't have a > > consumer-grade price tag. >=20 > I've heard nice things about the Fujitsu ScanSnap S1500 > (http://www.fujitsu.com/global/services/computing/peripheral/scanners/pro= duct/s1500/) > and S1500M (http://www.fujitsu.com/global/services/computing/peripheral/s= canners/product/s1500m/). > About $450 or so from amazon. The S1300 is about half the price but > also slower. >=20 > Apparently the S1500's are supported on Linux via Sane > (http://www.sane-project.org/sane-backends.html#S-FUJITSU). Don't see > any mention of the S1300 (but it probably also works?). >=20 Peace --=20 Pieter