sane-pieusb.5

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, sane-pieusb supports infrared scans  for  dirt  detection
       and removal. This must be enabled via the 'Clean image' setting.

KNOWN PROBLEMS

       The  sane-pieusb  backend  supports dirt removal based on infrared scan
       information. Since SANE does not provide post-processing in  the  back-
       end,  sane-pieusb  does  the scanning and dirt removal during the setup
       phase. The 'scan' phase is only used to transfer the  completed  image.
       Therefore  sane-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

       /usr/local/etc/sane.d/pieusb.conf
              The backend configuration file

       /usr/local/lib/sane/libsane-pieusb.a
              The static library implementing this backend.

       /usr/local/lib/sane/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 KAxmpf <kkaempf@suse.com>

AUTHORS

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

                                  10 Aug 2015                   sane-pieusb(5)