SANE Scanner Access Now Easy sane-coolscan2(5)
NAME
sane-coolscan2 - SANE backend for Nikon Coolscan film
scannersDESCRIPTION
The sane-coolscan2 library implements a SANE (Scanner Access
Now Easy) backend that provides access to Nikon Coolscan film scanners. Some functions of this backend should beconsidered beta-quality software. Most functions have been
stable for a long time, but of course new development can not and will not function properly from the very first day. Please report any strange behaviour to the maintainer of the backend. At present, the following scanners are known to work with this backend: Model: Connection Type--------------------------- -------------------
LS-30 (Coolscan III) SCSI
LS-2000 SCSI
LS-40 ED (Coolscan IV) USB
LS-4000 ED IEEE 1394
LS-8000 ED IEEE 1394
Please send mail to the backend author (andras@users.sourceforge.net) to report successes or failures. OPTIONS The options the backend supports can either be selected through command line options to programs like scanimage or through GUI elements in xscanimage or xsane. Valid command line options and their syntax can be listed by usingscanimage --help -d coolscan2:
: where
tion, as in the configuration file (see next section). Theand specify the device in ques- "-d" parameter and its argument can be omitted to obtain
information on the first scanner identified. Use the commandscanimage -L
to list all devices recognized by your SANE installation. The options should be fully described by the description or tooltips given by frontend. Here is a description of some of the most important options, in the syntax with which they must be supplied to scanimage:--frame
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SANE Scanner Access Now Easy sane-coolscan2(5)
This option specifies which frame to operate on, if a motorized film strip feeder or APS adapter are used. The frame numberranges from 1 to the number of frames available, which is sensed each time the backend is initialized (usually each time you start the fron-
tend).--subframe
This option shifts the scan window by the specified amount (default unit is mm).--infrared=yes/no
If set to "yes", the scanner will read the infrared channel, thus allowing defect removal in software. The infrared image is read during a second scan, with no options altered. The backend must not be restarted between the scans. If you use scanimage, perform abatch scan with batch-count=2 to obtain the IR informa-
tion.--depth
Herecan either be 8 or the maximum number of bits supported by the scanner (10, 12, or 14). It specifies whether or not the scanner reduces the scanned data to 8 bits before sending it to the backend. If 8 bits are used, some information and thus image quality is lost, but the amount of data is smaller compared to higher depths. Also, many imaging programs and image formats cannot handle depths greater than 8 bits. --autofocus
Perform autofocus operation. Unless otherwise specifiedby the other options ( --focus-on-centre and friends),
focusing is performed on the centre of the selected scan area.--ae-wb
--ae Perform a pre-scan to calculate exposure values
automatically. --ae-wb will maintain the white bal-
ance, while --ae will adjust each channel separately.
--exposure
Multiply all exposure times with this value. Thisallows exposure correction without modifying white bal-
ance.--load
Load the next slide when using the slide loader.--eject
Eject the film strip or mounted slide when using thesane-backends 1.0.19 Last change: 22/08/2002 2
SANE Scanner Access Now Easy sane-coolscan2(5)
slide loader.--reset
Reset scanner. The scanner will perform the same action as when power is turned on: it will eject the film strip and calibrate itself. Use this whenever the scanner refuses to load a film strip properly, as aresult of which --eject does not work.
CONFIGURATION FILE The configuration file /etc/sane.d/coolscan2.conf specifies the device(s) that the backend will use. Owing to the nature of the supported connection types SCSI, USB, and IEEE 1394,the default configuration file supplied with the SANE dis-
tribution should work without being edited.Each line in the configuration file is either of the follow-
ing, where all entries are case-sensitive:
blank or starting with a '#'
These lines are ignored, thus '#' can be used to
include comments. containing only the word "auto" This instructs the backend to probe for a scanner by scanning the buses for devices with know identifiers. This is the action taken when no configuration file is present. a line of the form: Here can be one of "scsi" or "usb", and is the device file of the scanner. Note that IEEE 1394 devices are handled by the SBP-2 module in
the kernel and appear to SANE as SCSI devices. FILES/usr/lib/sane/libsane-coolscan2.a
The static library implementing this backend./usr/lib/sane/libsane-coolscan2.so
The shared library implementing this backend (present on systems that support dynamic loading). /etc/sane.d/coolscan2.conf Configuration file for this backend, read each time the backend is initialized. ENVIRONMENTSANE_DEBUG_COOLSCAN2
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SANE Scanner Access Now Easy sane-coolscan2(5)
If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend. E.g., a value of 128 requests all debug output to be printed. Smaller levels reduce verbosity.SEE ALSO
sane-scsi(5), sane-usb(5), scanimage(1), xscanimage(1),
xsane(1)BUGS
Currently, the SANE protocol does not allow automatically updating options whenever the hardware changes. Thus thenumber of choices for the --frame option will be fixed when
the backend is initialized (usually when the user runs the frontend). In particular, if there is no film strip in the automatic film strip feeder when the backend is initialized, the frame option will not appear at all. Also, restartingthe frontend after swapping film adapters is strongly recom-
mended. Linux kernels prior to 2.4.19 had a patch that truncated INQUIRY data from IEEE 1394 scanners to 36 bytes, discarding vital information about the scanner. The IEEE 1394 models therefore only work with 2.4.19 or later.No real bugs currently known, please report any to the back-
end maintainer or the SANE developers' email list. AUTHORS The backend is written and maintained by Andr['a]s Major (andras@users.sourceforge.net).ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:_________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|____________________|____________________________________|_
| Availability | image/scanner/xsane/sane-backends|
|____________________|____________________________________|_
| Interface Stability| Uncommitted ||____________________|___________________________________|
NOTES Source for SANE is available on http://opensolaris.org.sane-backends 1.0.19 Last change: 22/08/2002 4