kopia lustrzana https://gitlab.com/sane-project/backends
168 wiersze
3.7 KiB
Groff
168 wiersze
3.7 KiB
Groff
.TH sane\-leo 5 "11 Jul 2008" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
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.IX sane\-leo
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.SH NAME
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sane\-leo \- SANE backend for LEO Technologies scanners
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.SH DESCRIPTION
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The
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.B sane\-leo
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library implements a SANE (Scanner Access Now Easy) backend that
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provides access to some LEO SCSI flatbed scanners. This backend
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should be considered
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.B beta-quality
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software! LEO scanners were also sold under the Across Technologies brand.
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.PP
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The scanners that should work with this backend are:
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.PP
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.RS
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.ft CR
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.nf
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Vendor Model status
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---------------------- -----------
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Across FS-1130 tested
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LEO S3 tested
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.fi
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.ft R
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.RE
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The options the backend supports can either be selected through
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command line options to programs like
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.BR scanimage (1)
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or through GUI elements in
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.BR xscanimage (1)
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or
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.BR xsane (1).
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.br
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If you have any strange behavior, please report to the backend
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maintainer or to the SANE mailing list.
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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 leo
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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 Black & White
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,
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.I Grayscale
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and
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.I Color
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The Black & White mode is black and white only (1 bit). Grayscale
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will produce 256 levels of gray (8 bits). Color will produce a 24 bits
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color image.
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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 all resolutions
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between 1 and 300, in increments of 1.
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.TP
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.B 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 millimeters by default.
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.TP
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.B Enhancement options
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.TP
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.B \-\-custom\-gamma
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(grayscale and 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 \-\-halftone
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(Black & White only) select the halftone mask to use. Possible values are
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.I Diamond
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,
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.I 8x8 Coarse Fatting
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,
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.I 8x8 Fine Fatting
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,
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.I 8x8 Bayer
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and
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.I 8x8 Vertical Line
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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 28 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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.SH CONFIGURATION FILE
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The configuration file
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.I @CONFIGDIR@/leo.conf
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supports only one information: the device name to use (eg
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.IR /dev/scanner ).
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.SH FILES
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.TP
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.I @LIBDIR@/libsane\-leo.a
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The static library implementing this backend.
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.TP
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.I @LIBDIR@/libsane\-leo.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_LEO
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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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The windows TWAIN driver has many more options than this SANE
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backend. However they are only software adjustments. This backend only
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implements what the scanner can support.
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SH BUGS
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None known.
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.SH "SEE ALSO"
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.BR sane\-scsi (5),
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.BR scanimage (1),
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.BR xscanimage (1),
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.BR xsane (1),
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.BR sane (7)
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.SH AUTHOR
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.TP
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The package is actively maintained by Frank Zago.
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.I http://www.zago.net/sane/#leo
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