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<TITLE>sane-coolscan3.5</TITLE>
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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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<H1>sane-coolscan3.5</H1>
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<HR>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<B><A HREF="sane-coolscan3.5.html">sane-coolscan3(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-coolscan3.5.html">sane-coolscan3(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-coolscan3 - SANE backend for Nikon Coolscan film scanners
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <B>sane-coolscan3</B> library implements a SANE (Scanner Access Now Easy)
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backend that provides access to Nikon Coolscan film scanners. Some
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functions of this backend should be considered <B>beta-quality</B> software.
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Most functions have been stable for a long time, but of course new
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development can not and will not function properly from the very first
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day.
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At present, the following scanners are known to work with this backend:
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Model: Connection Type
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--------------------------- -------------------
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LS-30 (Coolscan III) SCSI
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LS-40 ED (Coolscan IV) USB
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LS-50 ED (Coolscan V) USB
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LS-2000 SCSI
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LS-4000 ED IEEE 1394
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LS-8000 ED IEEE 1394
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Please send mail to <I>sane-devel@alioth-lists.debian.net</I> to report suc-
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cesses or failures.
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</PRE>
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<H2>OPTIONS</H2><PRE>
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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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Valid command line options and their syntax can be listed by using:
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scanimage --help -d coolscan3:<interface>:<device>
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where <interface> and <device> specify the device in question, as in
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the configuration file (see next section). The <B>-d</B> parameter and its
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argument can be omitted to obtain information on the first scanner
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identified. Use the command:
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scanimage -L
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to list all devices recognized by your SANE installation.
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The options should be fully described by the description or tooltips
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given by frontend. Here is a description of some of the most important
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options, in the syntax with which they must be supplied to <B>scanim-</B>
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<B><A HREF="age.1.html">age(1)</A></B>:
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<B>--frame</B> <B><n></B>
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This option specifies which frame to operate on, if a motorized
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film strip feeder or APS adapter are used. The frame number <I><n></I>
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ranges from 1 to the number of frames available, which is sensed
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each time the backend is initialized (usually each time you
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start the frontend).
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<B>--subframe</B> <B><x></B>
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This option shifts the scan window by the specified amount
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(default unit is mm).
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<B>--infrared=yes/no</B>
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If set to "yes", the scanner will read the infrared channel,
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thus allowing defect removal in software. The infrared image is
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read during a second scan, with no options altered. The backend
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must not be restarted between the scans. If you use scanimage,
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perform a batch scan with <B>--batch-count=2</B> to obtain the IR
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information.
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<B>--depth</B> <B><n></B>
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Here <n> can either be 8 or the maximum number of bits supported
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by the scanner (10, 12, or 14). It specifies whether or not the
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scanner reduces the scanned data to 8 bits before sending it to
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the backend. If 8 bits are used, some information and thus image
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quality is lost, but the amount of data is smaller compared to
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higher depths. Also, many imaging programs and image formats
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cannot handle depths greater than 8 bits.
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<B>--autofocus</B>
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Perform autofocus operation. Unless otherwise specified by the
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other options ( <B>--focus-on-centre</B> and friends), focusing is per-
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formed on the centre of the selected scan area.
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<B>--ae-wb</B>
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<B>--ae</B> Perform a pre-scan to calculate exposure values automatically.
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<B>--ae-wb</B> will maintain the white balance, while <B>--ae</B> will adjust
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each channel separately.
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<B>--exposure</B>
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Multiply all exposure times with this value. This allows expo-
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sure correction without modifying white balance.
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<B>--load</B> Load the next slide when using the slide loader (SF-200 bulk
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loader only).
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<B>--eject</B>
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Eject the film strip or mounted slide when using the slide
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loader.
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<B>--reset</B>
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Reset scanner. The scanner will perform the same action as when
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power is turned on: it will eject the film strip (with the
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SF-200 bulk loader) and calibrate itself. Use this whenever the
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scanner refuses to load a film strip properly, as a result of
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which <B>--eject</B> does not work.
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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/coolscan3.conf</I> specifies
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the device(s) that the backend will use. Owing to the nature of the
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supported connection types SCSI, USB, and IEEE 1394, the default con-
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figuration file supplied with the SANE distribution should work without
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being edited.
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Each line in the configuration file is either of the following, where
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all entries are case-sensitive:
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<I>blank</I> <I>or</I> <I>starting</I> <I>with</I> <I>a</I> <I>'#'</I> <I>character</I>
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These lines are ignored, thus '#' can be used to include com-
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ments.
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<I>containing</I> <I>only</I> <I>the</I> <I>word</I> <I>"auto"</I>
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This instructs the backend to probe for a scanner by scanning
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the buses for devices with known identifiers. This is the
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default action when no configuration file is present.
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<I>a</I> <I>line</I> <I>of</I> <I>the</I> <I>form</I> <I><interface>:<device></I>
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Here <interface> can be one of "scsi" or "usb", and <device> is
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the device file of the scanner. Note that IEEE 1394 devices are
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handled by the SBP-2 module in the kernel and appear to SANE as
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SCSI devices.
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</PRE>
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<H2>FILES</H2><PRE>
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<I>/usr/local/lib/sane/libsane-coolscan3.a</I>
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The static library implementing this backend.
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<I>/usr/local/lib/sane/libsane-coolscan3.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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<I>/usr/local/etc/sane.d/coolscan3.conf</I>
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Configuration file for this backend, read each time the backend
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is initialized.
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</PRE>
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<H2>ENVIRONMENT</H2><PRE>
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<B>SANE_DEBUG_COOLSCAN3</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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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>SEE ALSO</H2><PRE>
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<B><A HREF="sane-scsi.5.html">sane-scsi(5)</A></B>, <B><A HREF="sane-usb.5.html">sane-usb(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>
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</PRE>
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<H2>BUGS</H2><PRE>
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Currently, the SANE protocol does not allow automatically updating
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options whenever the hardware changes. Thus the number of choices for
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the <B>--frame</B> option will be fixed when the backend is initialized (usu-
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ally when the user runs the frontend). In particular, if there is no
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film strip in the automatic film strip feeder when the backend is ini-
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tialized, the <B>--frame</B> option will not appear at all. Also, restarting
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the frontend after swapping film adapters is strongly recommended.
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Linux kernels prior to 2.4.19 had a patch that truncated INQUIRY data
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from IEEE 1394 scanners to 36 bytes, discarding vital information about
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the scanner. The IEEE 1394 models therefore only work with 2.4.19 or
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later.
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No real bugs currently known, please report any to the SANE developers'
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list.
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</PRE>
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<H2>AUTHORS</H2><PRE>
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coolscan3 written by A. Zummo <<I>a.zummo@towertech.it</I>>, based heavily on
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coolscan2 written by Andr<B>a</B>s Major <<I>andras@users.sourceforge.net</I>>.
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11 Jul 2008 <B><A HREF="sane-coolscan3.5.html">sane-coolscan3(5)</A></B>
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</PRE>
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