kopia lustrzana https://gitlab.com/sane-project/backends
121 wiersze
3.6 KiB
Groff
121 wiersze
3.6 KiB
Groff
.TH sane-sceptre 5 "03 March 2002"
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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 1200 SCSI
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.RE
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The make of this scanner is KINPO, so other scanner from that manufacturer may also work.
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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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The
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.I --mode
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switch 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 will produce 256 levels of gray (8 bits). Color will produce a 24 bits color image. The scanner suports 30 bits internally but it only exports 24.
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The
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.I --halftone-pattern
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switch selects the pattern mode that is used in Halftone mode. Valid options are 1, 2, 3 and 4.
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The
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.I --gamma-correction
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switch controls the scanner internal gamma correction. Valid options are "Default", "User
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defined", "High density printing" "Low density printing" and "High contrast printing".
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The
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.I --resolution
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switch selects the resolution for a scan. The scanner can do several resolutions between 50 and 1200.
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The
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.I --custom-gamma
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parameter (color mode only) allows the user to specify a gamma table (see the next 3 parameters).
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The
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.I --red-gamma-table
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parameter (color mode only) can be used to download a user defined gamma table for the red channel. The table must be 256 bytes long.
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The
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.I --green-gamma-table
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parameter (color mode only) can be used to download a user defined gamma table for the green channel. The table must be 256 bytes long.
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The
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.I --blue-gamma-table
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parameter (color mode only) can be used to download a user defined gamma table for the blue channel. The table must be 256 bytes long.
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The
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.I --threshold
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sets the threshold for black and white pixels in lineart mode. Possible values are from 0 (darker) to 255 (lighter).
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The
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.I --preview
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option requests a preview scan. The resolution used for that scan is 30 dpi. The default is "no".
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The geometry options
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.I -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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aea. All parameters are specified in milimeters.
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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
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levels reduce verbosity.
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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 BUGS
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None known.
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.SH AUTHOR
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The package is actively maintained by Frank Zago.
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