Hi!
Samuel Wales samolog...@gmail.com writes:
We had a great discussion about scanners and ADFs here a while back.
The Fujitsu ScanSnap 1500 seemed to be a favorite.
We have got Fujitsu ScanSnap S1500M and FI-6130Z - both work near
perfect with Linux and SANE.
If you use SANE, it is necessary to set the driver to ADF first and set
the other parameters (eg. page size) later. This is different from the
epson driver for example - and not done by all frontends.
We also talked about what resolutions to scan at.
I usually scan at 600 dpi and convert to 300 dpi afterwards.
What's the current status of document scanners for Linux? How good
are the ADFs physically?
I also have an older Epson Perfection 1640SU scanner with ADF - the
driver support on Linux is ok, but mechanically the Fujitsu is much
faster and more robust. We also have a Canon imageRunner ADVANCE 5235
which works great as an ADF scanner, but is in a somewhat different
range :)
My script for a quick scan:
---
#!/bin/sh
# where to store scanned images
TEMPDIR=$(mktemp -d /tmp/scanadf.X)
SOURCE=ADF Front # possible options: ADF Front|ADF Back|ADF Duplex [ADF
Front]
SCANMODE=Gray # possible options: Lineart|Halftone|Gray|Color [Lineart]
RESOLUTION=600 # possible options: 50..600dpi
SOURCE=ADF Duplex
TITLE=$(date -I)_$1
echo Scanner input source : $SOURCE
echo Chosen title for document: $TITLE
scanadf --verbose --source $SOURCE --mode $SCANMODE --page-height=297 -l 0
-t 0 -x 210 -y 297 \
--resolution $RESOLUTION --no-overwrite --output-file
${TEMPDIR}/image-%04d.pnm
for file in ${TEMPDIR}/image-*.pnm; do
convert ${file} -resize 50% -depth 4 -normalize ${file%.pnm}.png
# -linear-stretch 2x2%
done
didjvu bundle --clean --lossy --output $TITLE.djvu $TEMPDIR/*.png
ocrodjvu --in-place --engine tesseract $TITLE.djvu
djview4 $TITLE.djvu
rm -rf $TEMPDIR
---
Best regards
Andreas
--
Andreas Hirczy a...@itp.tugraz.at http://itp.tugraz.at/~ahi/
Graz University of Technologyphone: +43/316/873- 8190
Institute of Theoretical and Computational Physics fax: +43/316/873-10 8190
Petersgasse 16, A-8010 Graz mobile: +43/664/859 23 57
