2008-02-14 01:57:19 +00:00
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<TITLE>sane-leo.5</TITLE>
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2021-02-14 12:22:49 +00:00
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<BODY BGCOLOR=#FFFFFF TEXT=#000000><H1 ALIGN=CENTER><IMG SRC="/images/sane.png" HEIGHT=117 WIDTH=346></H1>
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2008-02-14 01:57:19 +00:00
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<H1>sane-leo.5</H1>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<B><A HREF="sane-leo.5.html">sane-leo(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-leo.5.html">sane-leo(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-leo - SANE backend for LEO Technologies scanners
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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2020-03-29 05:47:02 +00:00
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The <B>sane-leo</B> library implements a SANE (Scanner Access Now Easy) back-
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end that provides access to some LEO SCSI flatbed scanners. This back-
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2008-02-14 01:57:19 +00:00
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end should be considered <B>beta-quality</B> software! LEO scanners were also
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sold under the Across Technologies brand.
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The scanners that should work with this backend are:
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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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The options the backend supports can either be selected through command
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line options to programs like <B><A HREF="scanimage.1.html">scanimage(1)</A></B> or through GUI elements in
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<B><A HREF="xscanimage.1.html">xscanimage(1)</A></B> or <B><A HREF="xsane.1.html">xsane(1)</A></B>.
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2020-03-29 05:47:02 +00:00
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If you have any strange behavior, please report to the backend main-
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tainer 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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scanimage --help -d leo
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<B>Scan</B> <B>Mode</B>
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2022-01-19 20:53:37 +00:00
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<B>--mode</B> selects the basic mode of operation of the scanner. Valid
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choices are <I>Black</I> <I>&</I> <I>White</I>, <I>Grayscale</I> and <I>Color</I>. The <I>Black</I> <I>&</I>
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<I>White</I> mode is black and white only (1 bit). <I>Grayscale</I> mode will
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produce 256 levels of gray (8 bits). <I>Color</I> mode will produce a
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24 bit color image.
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<B>--resolution</B>
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selects the resolution for a scan. The scanner can do all reso-
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lutions between 1 and 300, in increments of 1.
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<B>Geometry</B> <B>options</B>
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<B>-l</B> <B>-t</B> <B>-x</B> <B>-y</B>
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control the scan area: -l sets the top left x coordinate, -t the
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top left y coordinate, -x selects the width and -y the height of
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the scan area. All parameters are specified in millimeters by
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default.
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<B>Enhancement</B> <B>options</B>
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<B>--custom-gamma</B>
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(grayscale and color mode only) allows the user to specify a
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gamma table (see the next 3 parameters).
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<B>--red-gamma-table</B>
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(color mode only) can be used to download a user defined gamma
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table for the red channel. The table must be 256 bytes long.
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<B>--green-gamma-table</B>
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(color mode only) can be used to download a user defined gamma
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table for the green channel. The table must be 256 bytes long.
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<B>--blue-gamma-table</B>
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(color mode only) can be used to download a user defined gamma
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table for the blue channel. The table must be 256 bytes long.
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<B>--halftone</B>
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(Black & White only) select the halftone mask to use. Possible
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values are <I>Diamond</I>, <I>8x8</I> <I>Coarse</I> <I>Fatting</I>, <I>8x8</I> <I>Fine</I> <I>Fatting</I>, <I>8x8</I>
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<I>Bayer</I> and <I>8x8</I> <I>Vertical</I> <I>Line</I>.
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<B>--preview</B>
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requests a preview scan. The resolution used for that scan is 28
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dpi and the scan area is the maximum allowed. The scan mode is
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user selected. The default is "no".
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</PRE>
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<H2>CONFIGURATION FILE</H2><PRE>
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The configuration file <I>/usr/local/etc/sane.d/leo.conf</I> supports only one
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information: the device name to use (eg <I>/dev/scanner</I>).
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</PRE>
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<H2>FILES</H2><PRE>
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2017-05-22 22:39:44 +00:00
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<I>/usr/local/lib/sane/libsane-leo.a</I>
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The static library implementing this backend.
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2017-05-22 22:39:44 +00:00
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<I>/usr/local/lib/sane/libsane-leo.so</I>
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The shared library implementing this backend (present on systems
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that support dynamic loading).
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</PRE>
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<H2>ENVIRONMENT</H2><PRE>
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<B>SANE_DEBUG_LEO</B>
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2023-02-07 03:22:48 +00:00
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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.
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E.g., a value of 128 requests all debug output to be printed.
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Smaller levels reduce verbosity.
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</PRE>
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<H2>LIMITATIONS</H2><PRE>
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2022-01-19 20:53:37 +00:00
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The windows TWAIN driver has many more options than this SANE backend.
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However they are only software adjustments. This backend only imple-
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ments what the scanner can support.
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2022-01-19 20:53:37 +00:00
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</PRE>
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<H2>BUGS</H2><PRE>
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None known.
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2008-02-14 01:57:19 +00:00
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<B><A HREF="sane-scsi.5.html">sane-scsi(5)</A></B>, <B><A HREF="scanimage.1.html">scanimage(1)</A></B>, <B><A HREF="xscanimage.1.html">xscanimage(1)</A></B>, <B><A HREF="xsane.1.html">xsane(1)</A></B>, <B><A HREF="sane.7.html">sane(7)</A></B>
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</PRE>
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<H2>AUTHOR</H2><PRE>
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The package is actively maintained by Frank Zago.
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<I>http://www.zago.net/sane/#leo</I>
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2009-05-03 21:14:31 +00:00
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11 Jul 2008 <B><A HREF="sane-leo.5.html">sane-leo(5)</A></B>
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2008-02-14 01:57:19 +00:00
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</PRE>
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<HR>
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<ADDRESS>
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Man(1) output converted with
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<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
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</ADDRESS>
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</BODY>
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</HTML>
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