kopia lustrzana https://gitlab.com/sane-project/backends
150 wiersze
4.0 KiB
Groff
150 wiersze
4.0 KiB
Groff
.TH sane-sceptre 5 "April 21st, 2002" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
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.IX sane-sceptre
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.SH NAME
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sane-sceptre \- SANE backend for SCEPTRE scanners
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.SH DESCRIPTION
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The
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.B sane-sceptre
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library implements a SANE (Scanner Access Now Easy) backend that
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provides access to Sceptre flatbed scanners. This backend should be
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considered
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.B beta-quality
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software! Please report any strange behavior to the maintainer of the
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backend or to the SANE mailing list.
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.PP
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At present, only one scanner is known to work with this backend:
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.PP
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.RS
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Model Connection Type
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.br
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--------------------------- -------------------
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.br
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Sceptre VividScan S1200 SCSI
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.RE
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The make of this scanner is KINPO, so other scanners from that manufacturer may also work (eg. the S600).
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.SH OPTIONS
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The options the backend supports can either be selected through command line
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options to programs like scanimage or through GUI elements in xscanimage or xsane.
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Valid command line options and their syntax can be listed by using
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.RS
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scanimage --help -d sceptre
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.RE
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.TP
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.B Scan Mode
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.TP
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.B --mode
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selects the basic mode of operation of the scanner valid choices are
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.I Lineart, Halftone, Gray and Color.
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The Lineart and Haltone mode are black and white only (1 bit). Gray
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will produce 256 levels of gray (8 bits). Color will produce a 24 bits
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color image. The scanner suports 30 bits internally but it only
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exports 24.
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.TP
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.B --resolution
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selects the resolution for a scan. The scanner can do several
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resolutions between 50 and 1200.
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.TP
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.B --halftone-pattern
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selects the pattern mode that is used in Halftone mode. Valid options
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are 1, 2, 3 and 4.
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.TP
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.B --gamma-correction
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controls the scanner internal gamma correction. Valid options are
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"Default", "User defined", "High density printing" "Low density
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printing" and "High contrast printing".
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.TP
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.B --custom-gamma
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(color mode only) allows the user to specify a gamma table (see the
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next 3 parameters).
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.TP
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.B --red-gamma-table
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(color mode only) can be used to download a user defined
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gamma table for the red channel. The table must be 256 bytes long.
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.TP
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.B --green-gamma-table
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(color mode only) can be used to download a user defined
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gamma table for the green channel. The table must be 256 bytes long.
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.TP
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.B --blue-gamma-table
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(color mode only) can be used to download a user defined gamma table
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for the blue channel. The table must be 256 bytes long.
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.TP
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.B --threshold
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sets the threshold for black and white pixels in lineart
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mode. Possible values are from 0 (darker) to 255 (lighter).
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.TP
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.B --preview
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requests a preview scan. The resolution used for that scan is 30 dpi
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and the scan area is the maximum allowed. The scan mode is user
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selected. The default is "no".
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.TP
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.B The geometry options
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.TP
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.B -l -t -x -y
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control the scan area: -l sets the top left x coordinate, -t the top
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left y coordinate, -x selects the width and -y the height of the scan
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area. All parameters are specified in milimeters by default.
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.SH CONFIGURATION FILE
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The configuration file @CONFIGDIR@/sceptre.conf supports only one information: the device name to use (eg /dev/scanner).
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.SH FILES
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.TP
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.I @LIBDIR@/libsane-sceptre.a
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The static library implementing this backend.
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.TP
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.I @LIBDIR@/libsane-sceptre.so
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The shared library implementing this backend (present on systems that
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support dynamic loading).
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.SH ENVIRONMENT
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.TP
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.B SANE_DEBUG_SCEPTRE
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If the library was compiled with debug support enabled, this
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environment variable controls the debug level for this backend. E.g.,
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a value of 128 requests all debug output to be printed. Smaller levels
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reduce verbosity.
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.SH LIMITATIONS
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.TP
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.B Resolutions
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The windows TWAIN driver can be set to any resolution between 50 to 1200
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(excluding software interpolation). This backend cannot. Only a
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handful of resolution are available, although they should be numerous
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enough.
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.SH BUGS
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None known.
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.SH "SEE ALSO"
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sane\-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
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.SH AUTHOR
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The package is actively maintained by Frank Zago.
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http://www.zago.net/sane/#sceptre
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