2003-09-23 15:30:05 +00:00
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<TITLE>sane-canon.5</TITLE>
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2003-09-24 17:24:12 +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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2003-09-23 15:30:05 +00:00
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<H1>sane-canon.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-canon.5.html">sane-canon(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-canon.5.html">sane-canon(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-canon - SANE backend for Canon SCSI scanners
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <B>sane-canon</B> library implements a SANE (Scanner Access Now Easy)
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backend that provides access to the following Canon flatbed and film
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scanners:
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CanoScan 300
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CanoScan 600
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CanoScan FB620S
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CanoScan FB1200S
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CanoScan FS2700F
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CanoScan FS2710S
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Parallel port and USB scanners are not supported by this backend; see
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the manual pages for sane-canon_pp and sane-canon630u for further
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information.
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IMPORTANT: This is beta code. We tested the code on the scanners listed
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above, using the computers and operating systems available to us, but
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we cannot guarantee that the backend will work smoothly with future
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operating systems, SCSI adapters, SANE frontend programs, or Canon
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scanners not contained in the list above. In some cases your computer
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might even hang. It cannot be excluded (although we consider it
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extremely unlikely) that your scanner will be damaged.
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That said, TESTERS ARE WELCOME. Send your bug reports and comments to
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Manuel Panea <mpd@rzg.mpg.de>; for questions concerning the FB620 and
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FB1200S contact Mitsuru Okaniwa <m-okaniwa@bea.hi-ho.ne.jp>, for the
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FS2710S Ulrich Deiters <ukd@xenon.pc.uni-koeln.de>.
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</PRE>
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<H2>TIPS (FS2700F)</H2><PRE>
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Scanning either slides or negatives has been found to require rather
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large gamma corrections of about 2.2 to 2.4 (same value for red, green,
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and blue). It is recommended to use the automatic exposure controls of
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the frontend xsane for best results.
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The "Auto Focus" function triggers a special pass to determine the
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focus value. After that, the real scanning pass takes place.
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Even with "Auto Focus" turned on, the scanned image is often a bit too
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blurred. Using the GIMP to do a "Filter->Enhance->Sharpen" at about 40
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to 60 improves the image considerably.
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</PRE>
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<H2>TIPS (FS2710S)</H2><PRE>
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Gamma corrections are done not by the scanner, but by the backend. The
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scanner is always run in 12-bit mode. In "color" mode the image data
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are corrected for gamma, shadow point, etc., and then truncated to
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8-bit intensities; the default gamma value is 2.0. In "raw" mode the
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image data are exported without corrections as 16-bit intensities; this
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mode can be recommended if extensive adjustments have to be made to a
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picture (and if the frontend can handle 16-bit intensities).
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Negatives are handled by simple color inversion and may require manual
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removal of blue discoloration.
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</PRE>
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<H2>FILES</H2><PRE>
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<I>/usr/local/lib/sane/libsane-canon.a</I>
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The static library implementing this backend.
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<I>/usr/local/lib/sane/libsane-canon.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_CANON</B>
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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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Higher debug levels increase the verbosity of the output.
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Example: export SANE_DEBUG_CANON=4
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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>
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http://www.rzg.mpg.de/~mpd/sane/
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doc/canon.install2700F.txt (installation of a CanoScan 2700F
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</PRE>
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<H2>AUTHOR</H2><PRE>
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Helmut Koeberle, Manuel Panea, and Markus Mertinat; FB620S and FB1200S
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support by Mitsuru Okaniwa; FS2710S support by Ulrich Deiters
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Man page by Henning Meier-Geinitz (mostly based on canon.README)
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2005-12-18 15:23:45 +00:00
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sane-backends 1.0.17 03 May 2001 <B><A HREF="sane-canon.5.html">sane-canon(5)</A></B>
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2003-09-23 15:30:05 +00:00
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</PRE>
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<ADDRESS>
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