sane-pieusb

sane-pieusb(5)           SANE Scanner Access Now Easy           sane-pieusb(5)

NAME
       sane-pieusb  -  SANE  backend  for USB-connected PIE PowerSlide and Re-
       flecta DigitDia/CrystalScan/ProScan slide scanners

DESCRIPTION
       The sane-pieusb library implements a SANE  (Scanner  Access  Now  Easy)
       backend  that  provides  access to USB-connected PIE and Reflecta slide
       scanners.
       At present, the following scanners should work with this backend:

       Model:                    Status
       ------------------------- ------
       PIE PowerSlide 3600       Untested
       PIE PowerSlide 3650       Untested
       PIE PowerSlide 4000       Untested
       PIE PowerSlide 5000       Untested
       Reflecta CrystalScan 7200 Untested
       Reflecta ProScan 4000     Untested
       Reflecta ProScan 7200     Untested
       Reflecta DigitDia 3600    Untested
       Reflecta DigitDia 4000    Untested
       Reflecta DigitDia 5000    Untested
       Reflecta DigitDia 6000    Ok

MULTIPLE SLIDES
       Support for multiple slide scanners (like the  PowerSlide  or  DigitDia
       series)  is  done by auto-advancing ('Advance slide' setting) the slide
       after each scan.

       However, for best results, it is recommended to do a preview for  every
       slide  since  this sets gamma, brightness, and contrast to optimal val-
       ues.

       Attention: SANE does not have an automatic landscape/portrait detection
       and  re-orientation  when scanning multiple slides. You have to put all
       slides into one orientation first !

DIRT REMOVAL
       If available, pieusb supports infrared scans for dirt detection and re-
       moval. This must be enabled via the 'Clean image' setting.

KNOWN PROBLEMS
       The  pieusb backend supports dirt removal based on infrared scan infor-
       mation. Since SANE does not provide  post-processing  in  the  backend,
       pieusb  does  the scanning and dirt removal during the setup phase. The
       'scan' phase is only used to transfer the completed  image.   Therefore
       pieusb  does  not  multi-thread  making  a  typical  frontend appear as
       'blocked'. Also cancel requests are only honored between scans.

ENVIRONMENT
       SANE_DEBUG_PIEUSB
              If the library was compiled with debug support enabled, this en-
              vironment  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.

              level   debug output
              ------- ------------------------------
               0       nothing
               1       errors
               2       warnings & minor errors
               5       additional information
               7       SANE api calls
               9       backend functions

              11       scanner functions
              13       usb functions
              15       image buffer functions

FILES
       @CONFIGDIR@/pieusb.conf
              The backend configuration file

       @LIBDIR@/libsane-pieusb.a
              The static library implementing this backend.

       @LIBDIR@/libsane-pieusb.so
              The shared library implementing this backend (present on systems
              that support dynamic loading).

SEE ALSO
       sane(7)

CONTACT AND BUG-REPORTS
       Please send any information and bug-reports to:
       Klaus Kampf <kkaempf@suse.com>

AUTHORS
       The pieusb backend is based on work by Jan Vleeshouwers, Michael  Rick-
       mann, and Klaus Kampf

@PACKAGEVERSION@                  10 Aug 2015                   sane-pieusb(5)