table of contents
other versions
- wheezy 1.0.22-7.4
- jessie 1.0.24-8+deb8u2
- testing 1.0.25-4.1
- unstable 1.0.25-4.1
- experimental 1.0.26~git20151121-1
sane-sceptre(5) | SANE Scanner Access Now Easy | sane-sceptre(5) |
NAME¶
sane-sceptre - SANE backend for SCEPTRE scannersDESCRIPTION¶
The sane-sceptre library implements a SANE (Scanner Access Now Easy) backend that provides access to Sceptre flatbed scanners. This backend should be considered beta-quality software! Please report any strange behavior to the maintainer of the backend or to the SANE mailing list. At present, only one scanner is known to work with this backend:Model Connection Type --------------------------- ------------------- Sceptre VividScan S1200 SCSI
OPTIONS¶
The options the backend supports can either be selected through command line options to programs like scanimage or through GUI elements in xscanimage or xsane.scanimage --help -d sceptre
- Scan Mode
-
- --mode
- selects the basic mode of operation of the scanner valid
choices are Lineart, Halftone, Gray and Color. The Lineart and
Halftone mode are black and white only (1 bit). Gray will produce 256
levels of gray (8 bits). Color will produce a 24 bits color image. The
scanner supports 30 bits internally but it only exports 24.
- --resolution
- selects the resolution for a scan. The scanner can do
several resolutions between 50 and 1200.
- --halftone-pattern
- selects the pattern mode that is used in Halftone mode.
Valid options are 1, 2, 3 and 4.
- --gamma-correction
- controls the scanner internal gamma correction. Valid
options are "Default", "User defined", "High
density printing" "Low density printing" and "High
contrast printing".
- --custom-gamma
- (color mode only) allows the user to specify a gamma table
(see the next 3 parameters).
- --red-gamma-table
- (color mode only) can be used to download a user defined
gamma table for the red channel. The table must be 256 bytes long.
- --green-gamma-table
- (color mode only) can be used to download a user defined
gamma table for the green channel. The table must be 256 bytes long.
- --blue-gamma-table
- (color mode only) can be used to download a user defined
gamma table for the blue channel. The table must be 256 bytes long.
- --threshold
- sets the threshold for black and white pixels in lineart
mode. Possible values are from 0 (darker) to 255 (lighter).
- --preview
- requests a preview scan. The resolution used for that scan
is 30 dpi and the scan area is the maximum allowed. The scan mode is user
selected. The default is "no".
- The geometry options
-
- -l -t -x -y
- control the scan area: -l sets the top left x coordinate,
-t the top left y coordinate, -x selects the width and -y the height of
the scan area. All parameters are specified in millimeters by default.
CONFIGURATION FILE¶
The configuration file /etc/sane.d/sceptre.conf supports only one information: the device name to use (eg /dev/scanner).FILES¶
- /usr/lib/arch_triplet/sane/libsane-sceptre.a
- The static library implementing this backend.
- /usr/lib/arch_triplet/sane/libsane-sceptre.so
- The shared library implementing this backend (present on
systems that support dynamic loading).
ENVIRONMENT¶
- SANE_DEBUG_SCEPTRE
- If the library was compiled with debug support enabled,
this environment variable controls the debug level for this backend. E.g.,
a value of 128 requests all debug output to be printed. Smaller levels
reduce verbosity.
LIMITATIONS¶
- Resolutions
- The windows TWAIN driver can be set to any resolution
between 50 to 1200 (excluding software interpolation). This backend
cannot. Only a handful of resolution are available, although they should
be numerous enough.
BUGS¶
None known.SEE ALSO¶
sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)AUTHOR¶
- The package is actively maintained by Frank Zago.
- http://www.zago.net/sane/#sceptre
11 Jul 2008 |