244 lines
5.6 KiB
HTML
244 lines
5.6 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of sane-leo</TITLE>
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</HEAD><BODY>
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<H1>sane-leo</H1>
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Section: SANE Scanner Access Now Easy (5)<BR>Updated: 11 Jul 2008<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="ixAAB"></A>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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sane-leo - SANE backend for LEO Technologies scanners
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<A NAME="lbAC"> </A>
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<H2>DESCRIPTION</H2>
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The
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<B>sane-leo</B>
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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</B>
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software! LEO scanners were also sold under the Across Technologies brand.
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<P>
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The scanners that should work with this backend are:
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<P>
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<DL COMPACT><DT id="1"><DD>
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<PRE>
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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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</PRE>
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</DL>
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<P>
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The options the backend supports can either be selected through
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command line options to programs like scanimage or through GUI
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elements in xscanimage or xsane.
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<P>
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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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<P>
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Valid command line options and their syntax can be listed by using
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<DL COMPACT><DT id="2"><DD>
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scanimage --help -d leo
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</DL>
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<P>
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<DL COMPACT>
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<DT id="3"><B>Scan Mode</B>
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<DD>
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<P>
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<DT id="4"><B>--mode</B>
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<DD>
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selects the basic mode of operation of the scanner valid choices are
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<I>Black & White</I>
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,
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<I>Grayscale</I>
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and
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<I>Color</I>
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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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<P>
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<DT id="5"><B>--resolution</B>
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<DD>
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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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<P>
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<P>
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<DT id="6"><B>Geometry options</B>
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<DD>
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<P>
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<DT id="7"><B>-l -t -x -y</B>
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<DD>
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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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<P>
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<P>
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<DT id="8"><B>Enhancement options</B>
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<DD>
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<P>
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<DT id="9"><B>--custom-gamma</B>
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<DD>
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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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<P>
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<DT id="10"><B>--red-gamma-table</B>
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<DD>
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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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<P>
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<DT id="11"><B>--green-gamma-table</B>
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<DD>
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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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<P>
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<DT id="12"><B>--blue-gamma-table</B>
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<DD>
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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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<P>
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<DT id="13"><B>--halftone</B>
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<DD>
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(Black & White only) select the halftone mask to use. Possible values are
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<I>Diamond</I>
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,
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<I>8x8 Coarse Fatting</I>
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,
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<I>8x8 Fine Fatting</I>
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,
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<I>8x8 Bayer</I>
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and
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<I>8x8 Vertical Line</I>
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<P>
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<DT id="14"><B>--preview</B>
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<DD>
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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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<P>
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<P>
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</DL>
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<A NAME="lbAD"> </A>
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<H2>CONFIGURATION FILE</H2>
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The configuration file @CONFIGDIR@/leo.conf supports only one information: the device name to use (eg /dev/scanner).
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<P>
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<P>
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<A NAME="lbAE"> </A>
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<H2>FILES</H2>
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<DL COMPACT>
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<DT id="15"><I>@LIBDIR@/libsane-leo.a</I>
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<DD>
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The static library implementing this backend.
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<DT id="16"><I>@LIBDIR@/libsane-leo.so</I>
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<DD>
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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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<P>
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<P>
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</DL>
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<A NAME="lbAF"> </A>
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<H2>ENVIRONMENT</H2>
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<DL COMPACT>
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<DT id="17"><B>SANE_DEBUG_LEO</B>
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<DD>
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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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<P>
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<P>
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</DL>
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<A NAME="lbAG"> </A>
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<H2>LIMITATIONS</H2>
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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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<P>
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<P>
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<A NAME="lbAH"> </A>
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<H2>BUGS</H2>
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<P>
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None known.
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<P>
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<P>
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<P>
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<A HREF="/cgi-bin/man/man2html?5+sane-scsi">sane-scsi</A>(5), <A HREF="/cgi-bin/man/man2html?1+scanimage">scanimage</A>(1), <A HREF="/cgi-bin/man/man2html?1+xscanimage">xscanimage</A>(1), <A HREF="/cgi-bin/man/man2html?1+xsane">xsane</A>(1), <A HREF="/cgi-bin/man/man2html?7+sane">sane</A>(7)
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<P>
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<P>
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<A NAME="lbAJ"> </A>
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<H2>AUTHOR</H2>
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<P>
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<DL COMPACT>
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<DT id="18">The package is actively maintained by Frank Zago.<DD>
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<I><A HREF="http://www.zago.net/sane/#leo">http://www.zago.net/sane/#leo</A></I>
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<P>
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</DL>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="19"><A HREF="#lbAB">NAME</A><DD>
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<DT id="20"><A HREF="#lbAC">DESCRIPTION</A><DD>
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<DT id="21"><A HREF="#lbAD">CONFIGURATION FILE</A><DD>
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<DT id="22"><A HREF="#lbAE">FILES</A><DD>
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<DT id="23"><A HREF="#lbAF">ENVIRONMENT</A><DD>
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<DT id="24"><A HREF="#lbAG">LIMITATIONS</A><DD>
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<DT id="25"><A HREF="#lbAH">BUGS</A><DD>
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<DT id="26"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="27"><A HREF="#lbAJ">AUTHOR</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:05 GMT, March 31, 2021
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</BODY>
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</HTML>
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