xscanimage(1)
NAME
xscanimage - scan an image
SYNOPSIS
xscanimage [--version|-V] [--help|-h] [--display d] [--no-xshm] [--sync] [devicename]
DESCRIPTION
xscanimage provides a graphical user-interface to control an image acquisition device such as a flatbed scanner or a camera. It allows previewing and scanning invidual images and can be invoked either directly from the command-line or through The GIMP image manipulation program. In the former case, xscanimage acts as a stand-alone program that saves acquired images in a suitable PNM format (PBM for black-and- white images, PGM for grayscale images, and PPM for color images). In the latter case, the images are directly passed to The GIMP for further processing. xscanimage accesses image acquisition devices through the SANE (Scanner Access Now Easy) interface. The list of available devices depends on installed hardware and configuration. When invoked without an explicit devicename argument, xscanimage presents a dialog listing of all known and available devices. If the environment variable SANE_DEFAULT_DEVICE is set to the devicename, the device is preselected in the dialog. To access an available device that is not known to the system, the devicename must be specified explicitly. The format of devicename is backendname:devicefile (e.g. umax:/dev/sga).
RUNNING UNDER THE GIMP
To run xscanimage under the gimp(1), simply copy it to one of the gimp(1) plug-ins directories. If you want to conserve disk-space, you can create a symlink instead. For example, for gimp-1.0.x the command ln -s @BINDIR@/xscanimage ~/.gimp/plug-ins/ and for gimp-1.2.x the command ln -s @BINDIR@/xscanimage ~/.gimp-1.2/plug-ins/ adds a symlink for the xscanimage binary to the user's plug-ins directory. After creating this symlink, xscanimage will be queried by gimp(1) the next time it's invoked. From then on, xscanimage can be invoked through "File->Acquire->Xscanimage->Device dialog..." menu entry. You'll also find that the "File->Acquire->Xscanimage" menu contains short-cuts to the SANE devices that were available at the time xscanimage was queried. For example, the first PNM pseudo-device is typically available as the short-cut "File->Acquire->Xscanimage->pnm:0". Note that gimp(1) caches these short-cuts in ~/.gimp/pluginrc. Thus, when the list of available devices changes (e.g., a new scanner is installed), then it is typically desirable to rebuild this cache. To do this, you can either touch(1) the xscanimage binary (e.g., "touch @BINDIR@/xscanimage") or delete the plug-ins cache (e.g., "rm ~/.gimp/plug-ins"). Either way, invoking gimp(1) afterwards will cause the pluginrc to be rebuilt.
OPTIONS
If the --version (-V) option is given, xscanimage will output its version number. The --help (-h) flag prints a short summary of options. The --display flag selects the X11 display used to present the graphical user-interface (see X(1) for details). The --no-xshm flag requests not to use shared memory images. Shared memory images usually enhance performance but cause problems with some buggy X11 servers. Unless your X11 server dies when running this program, there is no need or advantage to specify this flag. The --sync flag requests a synchronous connection with the X11 server. This is for debugging purposes only.
ENVIRONMENT
SANE_DEFAULT_DEVICE
The default device-name. Example:
SANE_DEFAULT_DEVICE="hp:/dev/scanner".
SANE_DEBUG_XSCANIMAGE
This environment variable controls the debug level xscanimage.
Higher debug levels increase the verbosity of the output.
Value Descsription
0 print fatal errors
1 print errors
2 print warnings
3 print information messages
4 print everything
Example:
SANE_DEBUG_XSCANIMAGE=3
FILES
$HOME/.sane/xscanimage/xscanimage.rc
This files holds the user preferences. Normally, this file
should not be manipulated directly. Instead, the user should
customize the program through the "Preferences" dialog.
$HOME/.sane/xscanimage/devicename.rc
For each device, there is one rc-file that holds the saved
settings for that particular device. Normally, this file should
not be manipulated directly. Instead, the user should use the
xscanimage interface to select appropriate values and then save
the device settings using the "Preferences->Save Device
Settings" menubar entry.
$HOME/.sane/preview-devicename.ppm
After acquiring a preview, xscanimage normally saves the preview
image in this device-specific file. Thus, next time the program
is started up, the program can present the old preview image.
This feature can be turned off through the "Preferences->Preview
Options..." dialog.
@DATADIR@/sane-style.rc
This system-wide file controls the aspects of the user-interface
such as colors and fonts. It is a GTK style file and provides
fine control over the visual aspects of the user-interface.
$HOME/.sane/sane-style.rc
This file serves the same purpose as the system-wide style file.
If present, it takes precedence over the system wide style file.
SEE ALSO
sane(7), gimp(1), xcam(1), scanimage(1), scanadf(1), sane-scsi(5), sane-dll(5), sane-net(5), sane-"backendname"(5)
AUTHOR
Tristan Tarrant, Andreas Beck, David Mosberger, and Henning Meier-
Geinitz
1 Feb 2003 xscanimage(1)
Opportunity
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
Free Books
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Education
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.
