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<H1>scanimage.1</H1>
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<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
<B><A HREF="scanimage.1.html">scanimage(1)</A></B> SANE Scanner Access Now Easy <B><A HREF="scanimage.1.html">scanimage(1)</A></B>
</PRE>
<H2>NAME</H2><PRE>
scanimage - scan an image
</PRE>
<H2>SYNOPSIS</H2><PRE>
<B>scanimage</B> [<B>-d</B>|<B>--device-name</B> <I>dev</I>] [<B>--format</B> <I>format</I>] [<B>-i</B>|<B>--icc-profile</B>
<I>profile</I>] [<B>-L</B>|<B>--list-devices</B>] [<B>-f</B>|<B>--formatted-device-list</B> <I>format</I>]
[<B>-b</B>|<B>--batch</B> [=<I>format</I>]] [<B>--batch-start</B> <I>start</I>] [<B>--batch-count</B> <I>count</I>]
[<B>--batch-increment</B> <I>increment</I>] [<B>--batch-double</B>] [<B>--accept-md5-only</B>]
[<B>-p</B>|<B>--progress</B>] [<B>-n</B>|<B>--dont-scan</B>] [<B>-T</B>|<B>--test</B>] [<B>-A</B>|<B>--all-options</B>]
[<B>-h</B>|<B>--help</B>] [<B>-v</B>|<B>--verbose</B>] [<B>-B</B>|<B>--buffer-size</B> [=<I>size</I>]] [<B>-V</B>|<B>--version</B>]
[<I>device-specific-options</I>]
</PRE>
<H2>DESCRIPTION</H2><PRE>
<B>scanimage</B> is a command-line interface to control image acquisition
devices such as flatbed scanners or cameras. The device is controlled
via command-line options. After command-line processing, <B>scanimage</B>
normally proceeds to acquire an image. The image data is written to
standard output in one of the PNM (portable aNyMaP) formats (PBM for
black-and-white images, PGM for grayscale images, and PPM for color
images) or in TIFF (black-and-white, grayscale or color). <B>scanimage</B>
accesses image acquisition devices through the <B>SANE</B> (Scanner Access Now
Easy) interface and can thus support any device for which there exists
a <B>SANE</B> backend (try <B>apropos</B> <I>sane-</I> to get a list of available backends).
</PRE>
<H2>EXAMPLES</H2><PRE>
To get a list of devices:
scanimage -L
To scan with default settings to the file image.pnm:
scanimage &gt;image.pnm
To scan 100x100 mm to the file image.tiff (-x and -y may not be avail‐
able with all devices):
scanimage -x 100 -y 100 --format=tiff &gt;image.tiff
To print all available options:
scanimage -h
</PRE>
<H2>OPTIONS</H2><PRE>
Parameters are separated by a blank from single-character options (e.g.
-d epson) and by a "=" from multi-character options (e.g.
--device-name=epson).
The <B>-d</B> or <B>--device-name</B> options must be followed by a <B>SANE</B> device-name
like `<I>epson:/dev/sg0</I>' or `<I>hp:/dev/usbscanner0</I>'. A (partial) list of
available devices can be obtained with the <B>--list-devices</B> option (see
below). If no device-name is specified explicitly, <B>scanimage</B> reads a
device-name from the environment variable <B>SANE_DEFAULT_DEVICE</B>. If this
variable is not set, <B>scanimage</B> will attempt to open the first available
device.
The <B>--format</B> <I>format</I> option selects how image data is written to stan‐
dard output. <I>format</I> can be <B>pnm</B> or <B>tiff.</B> If <B>--format</B> is not used, PNM
is written.
The <B>-i</B> or <B>--icc-profile</B> option is used to include an ICC profile into a
TIFF file.
The <B>-L</B> or <B>--list-devices</B> option requests a (partial) list of devices
that are available. The list is not complete since some devices may be
available, but are not listed in any of the configuration files (which
are typically stored in directory <I>/etc/sane.d</I>). This is particularly
the case when accessing scanners through the network. If a device is
not listed in a configuration file, the only way to access it is by its
full device name. You may need to consult your system administrator to
find out the names of such devices.
The <B>-f</B> or <B>--formatted-device-list</B> option works similar to
<B>--list-devices</B>, but requires a format string. <B>scanimage</B> replaces the
placeholders <B>%d</B> <B>%v</B> <B>%m</B> <B>%t</B> <B>%i</B> <B>%n</B> with the device name, vendor name, model
name, scanner type, an index number and newline respectively. The com‐
mand
<B>scanimage</B> <B>-f</B> <I><EFBFBD></I><EFBFBD><EFBFBD> <I>scanner</I> <I>number</I> <I>%i</I> <I>device</I> <I>%d</I> <I>is</I> <I>a</I> <I>%t,</I> <I>model</I> <I>%m,</I>
<I>produced</I> <I>by</I> <I>%v</I> <I><EFBFBD></I><EFBFBD><EFBFBD>
will produce something like:
scanner number 0 device sharp:/dev/sg1 is a flatbed scanner,
model JX250 SCSI, produced by SHARP
The <B>--batch*</B> options provide the features for scanning documents using
document feeders. <B>--batch</B> [<I>format</I>] is used to specify the format of
the filename that each page will be written to. Each page is written
out to a single file. If <I>format</I> is not specified, the default of
out%d.pnm (or out%d.tif for --format tiff) will be used. <I>format</I> is
given as a printf style string with one integer parameter.
<B>--batch-start</B> <I>start</I> selects the page number to start naming files with.
If this option is not given, the counter will start at 1.
<B>--batch-count</B> <I>count</I> specifies the number of pages to attempt to scan.
If not given, scanimage will continue scanning until the scanner
returns a state other than OK. Not all scanners with document feeders
signal when the ADF is empty, use this command to work around them.
With <B>--batch-increment</B> <I>increment</I> you can change the amount that the
number in the filename is incremented by. Generally this is used when
you are scanning double-sided documents on a single-sided document
feeder. A specific command is provided to aid this: <B>--batch-double</B>
will automatically set the increment to 2. <B>--batch-prompt</B> will ask for
pressing RETURN before scanning a page. This can be used for scanning
multiple pages without an automatic document feeder.
The <B>--accept-md5-only</B> option only accepts user authorization requests
that support MD5 security. The <B>SANE</B> network daemon (<B>saned</B>) is capable
of doing such requests. See <B><A HREF="saned.8.html">saned(8)</A></B>.
The <B>-p</B> or <B>--progress</B> option requests that <B>scanimage</B> prints a progress
counter. It shows how much image data of the current image has already
been received by <B>scanimage</B> (in percent).
The <B>-n</B> or <B>--dont-scan</B> option requests that <B>scanimage</B> only sets the
options provided by the user but doesn't actually perform a scan. This
option can be used to e.g. turn off the scanner's lamp (if supported by
the backend).
The <B>-T</B> or <B>--test</B> option requests that <B>scanimage</B> performs a few simple
sanity tests to make sure the backend works as defined by the <B>SANE</B> API
(in particular the <B>sane_read</B> function is exercised by this test).
The <B>-A</B> or <B>--all-options</B> option requests that <B>scanimage</B> lists all avail‐
able options exposed the backend, including button options. The infor‐
mation is printed on standard output and no scan will be done.
The <B>-h</B> or <B>--help</B> options request help information. The information is
printed on standard output and in this case, no attempt will be made to
acquire an image.
The <B>-v</B> or <B>--verbose</B> options increase the verbosity of the operation of
<B>scanimage.</B> The option may be specified repeatedly, each time increas‐
ing the verbosity level.
The <B>-B</B> or <B>--buffer-size</B> changes the input buffer size from 32KB to the
number kB specified or 1M.
The <B>-V</B> or <B>--version</B> option requests that <B>scanimage</B> prints the program
and package name, the version number of the <B>SANE</B> distribution that it
came with and the version of the backend that it loads. Usually that's
the dll backend. If more information about the version numbers of the
backends are necessary, the <B>DEBUG</B> variable for the dll backend can be
used. Example: SANE_DEBUG_DLL=3 scanimage -L.
As you might imagine, much of the power of <B>scanimage</B> comes from the
fact that it can control any <B>SANE</B> backend. Thus, the exact set of com‐
mand-line options depends on the capabilities of the selected device.
To see the options for a device named <I>dev</I>, invoke <B>scanimage</B> via a com‐
mand-line of the form:
<B>scanimage</B> <B>--help</B> <B>--device-name</B> <I>dev</I>
The documentation for the device-specific options printed by <B>--help</B> is
best explained with a few examples:
-l 0..218mm [0]
Top-left x position of scan area.
The description above shows that option <B>-l</B> expects an option
value in the range from 0 to 218 mm. The value in square brack‐
ets indicates that the current option value is 0 mm. Most back‐
ends provide similar geometry options for top-left y position
(-t), width (-x) and height of scan-area (-y).
--brightness -100..100% [0]
Controls the brightness of the acquired image.
The description above shows that option <B>--brightness</B> expects an
option value in the range from -100 to 100 percent. The value
in square brackets indicates that the current option value is 0
percent.
--default-enhancements
Set default values for enhancement controls.
The description above shows that option <B>--default-enhancements</B>
has no option value. It should be thought of as having an imme‐
diate effect at the point of the command-line at which it
appears. For example, since this option resets the <B>--brightness</B>
option, the option-pair <B>--brightness</B> <B>50</B> <B>--default-enhancements</B>
would effectively be a no-op.
--mode Lineart|Gray|Color [Gray]
Selects the scan mode (e.g., lineart or color).
The description above shows that option <B>--mode</B> accepts an argu‐
ment that must be one of the strings <B>Lineart</B>, <B>Gray</B>, or <B>Color</B>.
The value in the square bracket indicates that the option is
currently set to <B>Gray</B>. For convenience, it is legal to abbrevi‐
ate the string values as long as they remain unique. Also, the
case of the spelling doesn't matter. For example, option set‐
ting <B>--mode</B> <B>col</B> is identical to <B>--mode</B> <B>Color</B>.
--custom-gamma[=(yes|no)] [inactive]
Determines whether a builtin or a custom gamma-table
should be used.
The description above shows that option <B>--custom-gamma</B> expects
either no option value, a "yes" string, or a "no" string. Spec‐
ifying the option with no value is equivalent to specifying
"yes". The value in square-brackets indicates that the option
is not currently active. That is, attempting to set the option
would result in an error message. The set of available options
typically depends on the settings of other options. For exam‐
ple, the <B>--custom-gamma</B> table might be active only when a
grayscale or color scan-mode has been requested.
Note that the <B>--help</B> option is processed only after all other
options have been processed. This makes it possible to see the
option settings for a particular mode by specifying the appro‐
priate mode-options along with the <B>--help</B> option. For example,
the command-line:
<B>scanimage</B> <B>--help</B> <B>--mode</B> <I>color</I>
would print the option settings that are in effect when the
color-mode is selected.
--gamma-table 0..255,...
Gamma-correction table. In color mode this option
equally affects the red, green, and blue channels
simultaneously (i.e., it is an intensity gamma table).
The description above shows that option <B>--gamma-table</B> expects
zero or more values in the range 0 to 255. For example, a legal
value for this option would be "3,4,5,6,7,8,9,10,11,12". Since
it's cumbersome to specify long vectors in this form, the same
can be expressed by the abbreviated form "[0]3-[9]12". What
this means is that the first vector element is set to 3, the
9-th element is set to 12 and the values in between are interpo‐
lated linearly. Of course, it is possible to specify multiple
such linear segments. For example, "[0]3-[2]3-[6]7,[7]10-[9]6"
is equivalent to "3,3,3,4,5,6,7,10,8,6". The program
<B>gamma4scanimage</B> can be used to generate such gamma tables (see
<B><A HREF="gamma4scanimage.1.html">gamma4scanimage(1)</A></B> for details).
--filename &lt;string&gt; [/tmp/input.ppm]
The filename of the image to be loaded.
The description above is an example of an option that takes an
arbitrary string value (which happens to be a filename). Again,
the value in brackets show that the option is current set to the
filename <B>/tmp/input.ppm</B>.
</PRE>
<H2>ENVIRONMENT</H2><PRE>
<B>SANE_DEFAULT_DEVICE</B>
The default device-name.
</PRE>
<H2>FILES</H2><PRE>
<I>/etc/sane.d</I>
This directory holds various configuration files. For details,
please refer to the manual pages listed below.
<I>~/.sane/pass</I>
This file contains lines of the form
user:password:resource
scanimage uses this information to answer user authorization
requests automatically. The file must have 0600 permissions or
stricter. You should use this file in conjunction with the
--accept-md5-only option to avoid server-side attacks. The
resource may contain any character but is limited to 127 charac‐
ters.
</PRE>
<H2>SEE ALSO</H2><PRE>
<B><A HREF="sane.7.html">sane(7)</A></B>, <B><A HREF="gamma4scanimage.1.html">gamma4scanimage(1)</A></B>, <B><A HREF="xscanimage.1.html">xscanimage(1)</A></B>, <B>xcam(1)</B>, <B>xsane(1)</B>,
<B><A HREF="scanadf.1.html">scanadf(1)</A></B>, <B><A HREF="sane-dll.5.html">sane-dll(5)</A></B>, <B><A HREF="sane-net.5.html">sane-net(5)</A></B>, <B>sane-"backendname"</B>(5)
</PRE>
<H2>AUTHOR</H2><PRE>
David Mosberger, Andreas Beck, Gordon Matzigkeit, Caskey Dickson, and
many others. For questions and comments contact the sane-devel mail‐
inglist (see http://www.sane-project.org/mailing-lists.html).
</PRE>
<H2>BUGS</H2><PRE>
For vector options, the help output currently has no indication as to
how many elements a vector-value should have.
10 Jul 2008 <B><A HREF="scanimage.1.html">scanimage(1)</A></B>
</PRE>
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