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 thisbackend; see the manual pages for sane-canon_pp 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 computermight 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 oftena bit too blurred. Using the GIMP to do a "Filter->Enhance-
>Sharpen" at about 40 to 60 improves the image considerably. TIPS (FS2710S)sane-backends 1.0.19Last change: 03 May 2001 1
SANE Scanner Access Now Easy sane-canon(5)
Gamma corrections are done not by the scanner, but by thebackend. The scanner is always run in 12-bit mode. In
"color" mode the image data are corrected for gamma, shadowpoint, etc., and then truncated to 8-bit intensities; the
default gamma value is 2.0. In "raw" mode the image data areexported without corrections as 16-bit intensities; this
mode can be recommended if extensive adjustments have to bemade 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). ENVIRONMENTSANE_DEBUG_CANON
If the library was compiled with debug support enabled, this environment variable controls the debug level forthis backend. Higher debug levels increase the verbos-
ity of the output.Example: export SANE_DEBUG_CANON=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 DeitersMan page by Henning Meier-Geinitz (mostly based on
canon.README)ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:sane-backends 1.0.19Last change: 03 May 2001 2
SANE Scanner Access Now Easy sane-canon(5)
_________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|____________________|____________________________________|_
| Availability | image/scanner/xsane/sane-backends|
|____________________|____________________________________|_
| Interface Stability| Uncommitted ||____________________|___________________________________|
NOTES Source for SANE is available on http://opensolaris.org.sane-backends 1.0.19Last change: 03 May 2001 3