sane-stv680 - SANE backend for STV680 camera's


   The  sane-stv680  library  implements  a SANE (Scanner Access Now Easy)
   backend that provides access  to  some  STV680  cameras.  This  backend
   should  be  considered  beta-quality  software! STV680 cameras are sold
   under various brands like Aiptek.  This backend may or may not  support

   The cameras that should work with this backend are:

   Vendor Model              USB vendor id  USB product id  status
   ------------------------  -------------  --------------  --------
   AIPTEK stv680                0x0553         0x0202       basic
   Konica e-mini                0x04c8         0x0722       untested
   DigitalDream l'espion XS     0x1183         0x0001       untested
   Creative WebCam Go mini      0x041e         0x4007       untested

   For all these cameras, see the backend home page (under AUTHOR) for the
   exact status of each camera.

   For startup of this backend check that if  present  the  stv680  kernel
   module is removed or disabled.
   Also    before    using,    enable   the   backend   by   editing   the
   /etc/sane.d/dll.conf file, change #stv680 to stv680.

   For problems with the untested cameras, you should contact  the  author
   for that.

   The options the backend supports can either be selected through command
   line options to programs like scanimage  or  through  GUI  elements  in
   xcam. For both programs use the -B option needed for size buffer.

   Some frontends examples:
          xcam -B

   scanimage:  for  writing  in batch mode to a file or to a new file each
          scanimage -B -d stv680:libusb:001:002  --batch=out.ppm  --batch-
          count 5 --mode "Color RGB"
          scanimage -B -d stv680:libusb:001:002 --batch=out%d.ppm --batch-
          count 5 --mode "Color RGB"

   If you have any success with a camera not listed here, or if  you  have
   any strange behavior, please report to the backend maintainer or to the
   SANE mailing list.

   Valid command line options and their syntax can be listed by using
          scanimage --help -d stv680

   Scan Mode

   --mode selects the  basic  mode  of  operation  of  the  webcams  valid

          The  read  resolution  mode  is  8 bits, output resolution is 24
          bits.  Selects the resolution for a scan.   The  camera  can  do
          only the resolutions listed.

   --Raw  In this mode raw data is displayed

          In this mode the bayer unshuffle is done but no color correction

          Bayer unshuffle, color correction

          Bayer  unshuffle,  color correction, textline with date and time
          is added

   Enhancement options

          Selects what red radiance level should  be  considered  "white",
          when  scanning  some  sheets  by  changing the calibration value
          loaded into the scanner. Scale -32 .. 0 .. +32 in steps of 1.

          Selects what green radiance level should be considered  "white",
          when  scanning  some  sheets by changing the calibration i value
          loaded into the scanner. Scale -32 .. 0 .. +32 in steps of 1.

          Selects what blue radiance level should be  considered  "white",
          when  scanning  some  sheets  by  changing the calibration value
          loaded into the scanner. Scale -32 .. 0 .. +32 in steps of 1.


   The  configuration  file  /etc/sane.d/stv680.conf  supports  only   one
   information: the device name to use (eg usb 0x.... 0x....).


          The static library implementing this backend.

          The shared library implementing this backend (present on systems
          that support dynamic loading).


          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.


   The  windows TWAIN driver has many more options than this SANE backend.
   However  they  are  only  software  adjustments.  This   backend   only
   implements what the webcam can support.


   Plenty. Parts of this backend are still under development.
          1. Some untested cameras.
          2. Video streaming slow and stops sometimes (scanimage).
          3. Sometimes 1/3 of image is NOK (xcam).


   sane-usb(5), scanimage(1), xcam(1), sane(7)


   Gerard Klaver


   Thanks to developers of the other stv680 programs:
          STV680 kernel module
          pencam2 program
          libghoto2 program (camlib stv0680)

                              11 Jul 2008                   sane-stv680(5)


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.


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.