Re: [O] [OT] Scanning for archiving

[Pieter Praet]

On Sun, 6 Nov 2011 22:14:54 -0800, TP <address@hidden> wrote:
> On Sun, Nov 6, 2011 at 1:59 PM, Pieter Praet <address@hidden> wrote:
> > On Sat, 5 Nov 2011 16:35:11 -0700, Samuel Wales <address@hidden> 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.
> 
> 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.
> 

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...  If anyone on this list can think of a scanner whose
> > ADF doesn't require constant babysitting, I'm betting it won't have a
> > consumer-grade price tag.
> 
> I've heard nice things about the Fujitsu ScanSnap S1500
> (http://www.fujitsu.com/global/services/computing/peripheral/scanners/product/s1500/)
> and S1500M 
> (http://www.fujitsu.com/global/services/computing/peripheral/scanners/product/s1500m/).
> About $450 or so from amazon. The S1300 is about half the price but
> also slower.
> 
> 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?).
> 


Peace

-- 
Pieter