SANE Scanner Access Now Easy sane-canon(5)
NAME
sane-canon - SANE backend for Canon SCSI scanners
DESCRIPTION
The sane-canon library implements a SANE (Scanner Access Now
Easy) backend that provides access to the following Canon
flatbed and film scanners:
CanoScan 300
CanoScan 600
CanoScan FB620S
CanoScan FB1200S
CanoScan FS2700F
CanoScan FS2710S
Parallel port and USB scanners are not supported by this
backend; see the manual pages for sane-canonpp and sane-
canon630u for further information.
IMPORTANT: This is beta code. We tested the code on the
scanners listed above, using the computers and operating
systems available to us, but we cannot guarantee that the
backend will work smoothly with future operating systems,
SCSI adapters, SANE frontend programs, or Canon scanners not
contained in the list above. In some cases your computer
might even hang. It cannot be excluded (although we con-
sider it extremely unlikely) that your scanner will be dam-
aged.
That said, TESTERS ARE WELCOME. Send your bug reports and
comments to Manuel Panea ; for questions
concerning the FB620 and FB1200S contact Mitsuru Okaniwa
, for the FS2710S Ulrich Deiters
.
TIPS (FS2700F)
Scanning either slides or negatives has been found to
require rather large gamma corrections of about 2.2 to 2.4
(same value for red, green, and blue). It is recommended to
use the automatic exposure controls of the frontend xsane
for best results.
The "Auto Focus" function triggers a special pass to deter-
mine the focus value. After that, the real scanning pass
takes place.
Even with "Auto Focus" turned on, the scanned image is often
a bit too blurred. Using the GIMP to do a "Filter->Enhance-
>Sharpen" at about 40 to 60 improves the image considerably.
TIPS (FS2710S)
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SANE Scanner Access Now Easy sane-canon(5)
Gamma corrections are done not by the scanner, but by the
backend. The scanner is always run in 12-bit mode. In
"color" mode the image data are corrected for gamma, shadow
point, etc., and then truncated to 8-bit intensities; the
default gamma value is 2.0. In "raw" mode the image data are
exported without corrections as 16-bit intensities; this
mode can be recommended if extensive adjustments have to be
made to a picture (and if the frontend can handle 16-bit
intensities).
Negatives are handled by simple color inversion and may
require manual removal of blue discoloration.
FILES
/usr/lib/sane/libsane-canon.a
The static library implementing this backend.
/usr/lib/sane/libsane-canon.so
The shared library implementing this backend (present
on systems that support dynamic loading).
ENVIRONMENT
SANEDEBUGCANON
If the library was compiled with debug support enabled,
this environment variable controls the debug level for
this backend. Higher debug levels increase the verbos-
ity of the output.
Example: export SANEDEBUGCANON=4
SEE ALSO
sane-scsi(5)
http:/www.rzg.mpg.de/~mpd/sane/
doc/canon.install2700F.txt (installation of a CanoScan 2700F
AUTHOR
Helmut Koeberle, Manuel Panea, and Markus Mertinat; FB620S
and FB1200S support by Mitsuru Okaniwa; FS2710S support by
Ulrich Deiters
Man page by Henning Meier-Geinitz (mostly based on
canon.README)
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
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SANE Scanner Access Now Easy sane-canon(5)
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWsane-backend
Interface Stability Uncommitted
NOTES
Source for SANE is available on http:/opensolaris.org.
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