177 lines
4.8 KiB
HTML
177 lines
4.8 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-canon</TITLE>
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</HEAD><BODY>
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<H1>sane-canon</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-canon - SANE backend for Canon SCSI 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-canon</B>
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library implements a SANE (Scanner Access Now Easy) backend that
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provides access to the following Canon flatbed and film scanners:
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<P>
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<DL COMPACT><DT id="1"><DD>
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CanoScan 300
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<BR>
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CanoScan 600
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<BR>
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CanoScan FB620S
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<BR>
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CanoScan FB1200S
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<BR>
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CanoScan FS2700F
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<BR>
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CanoScan FS2710S
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<BR>
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</DL>
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<P>
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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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<P>
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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 we
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cannot guarantee that the backend will work smoothly with future operating
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systems, SCSI adapters, SANE frontend programs, or Canon scanners not
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contained in the list above. In some cases your computer might even hang.
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It cannot be excluded (although we consider it extremely unlikely) that your
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scanner will be damaged.
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<P>
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That said, TESTERS ARE WELCOME. Send your bug reports and comments to
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Manuel Panea <<A HREF="mailto:mpd@rzg.mpg.de">mpd@rzg.mpg.de</A>>; for questions concerning the FB620 and
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FB1200S contact Mitsuru Okaniwa <<A HREF="mailto:m-okaniwa@bea.hi-ho.ne.jp">m-okaniwa@bea.hi-ho.ne.jp</A>>, for the
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FS2710S Ulrich Deiters <<A HREF="mailto:ukd@xenon.pc.uni-koeln.de">ukd@xenon.pc.uni-koeln.de</A>>.
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<P>
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<P>
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<A NAME="lbAD"> </A>
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<H2>TIPS (FS2700F)</H2>
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<P>
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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
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of the frontend xsane for best results.
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<P>
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The "Auto Focus" function triggers a special pass to determine the focus
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value. After that, the real scanning pass takes place.
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<P>
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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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<P>
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<P>
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<A NAME="lbAE"> </A>
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<H2>TIPS (FS2710S)</H2>
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<P>
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Gamma corrections are done not by the scanner, but by the backend.
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The scanner is always run in 12-bit mode. In "color" mode the image
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data are corrected for gamma, shadow point, etc., and then truncated
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to 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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<P>
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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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<P>
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<A NAME="lbAF"> </A>
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<H2>FILES</H2>
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<DL COMPACT>
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<DT id="2"><I>@LIBDIR@/libsane-canon.a</I>
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<DD>
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The static library implementing this backend.
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<DT id="3"><I>@LIBDIR@/libsane-canon.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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</DL>
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<A NAME="lbAG"> </A>
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<H2>ENVIRONMENT</H2>
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<DL COMPACT>
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<DT id="4"><B>SANE_DEBUG_CANON</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. Higher
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debug levels increase the verbosity of the output.
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<P>
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Example:
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export SANE_DEBUG_CANON=4
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<P>
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</DL>
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<A NAME="lbAH"> </A>
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<H2>SEE ALSO</H2>
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<A HREF="/cgi-bin/man/man2html?5+sane-scsi">sane-scsi</A>(5)
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<BR>
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<A HREF="http://www.rzg.mpg.de/~mpd/sane/">http://www.rzg.mpg.de/~mpd/sane/</A>
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<BR>
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doc/canon.install2700F.txt (installation of a CanoScan 2700F
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<BR>
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<A NAME="lbAI"> </A>
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<H2>AUTHOR</H2>
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Helmut Koeberle, Manuel Panea, and Markus Mertinat; FB620S and FB1200S support
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by Mitsuru Okaniwa; FS2710S support by Ulrich Deiters
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<BR>
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Man page by Henning Meier-Geinitz (mostly based on canon.README)
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<P>
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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="5"><A HREF="#lbAB">NAME</A><DD>
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<DT id="6"><A HREF="#lbAC">DESCRIPTION</A><DD>
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<DT id="7"><A HREF="#lbAD">TIPS (FS2700F)</A><DD>
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<DT id="8"><A HREF="#lbAE">TIPS (FS2710S)</A><DD>
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<DT id="9"><A HREF="#lbAF">FILES</A><DD>
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<DT id="10"><A HREF="#lbAG">ENVIRONMENT</A><DD>
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<DT id="11"><A HREF="#lbAH">SEE ALSO</A><DD>
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<DT id="12"><A HREF="#lbAI">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: 00:06:04 GMT, March 31, 2021
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