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Docupen tools V0.1 (by Florian Heinz <fh@cronon-ag.de>)

- provides a library for access to the docupen (raw file, sd-card and usb)
- provides a CLI-tool (dpenctl) for extracting images
- provides a java-interface (incomplete)
- only tested with DocuPen RC800 yet!

Prerequisites:
libusb (with development/header-files)
optional: java (jdk with development/header-files)

Build:
cd src; make

Example usages:
dpenctl -d usb -x all -o dpen.jpg        # extract all images via usb
dpenctl -d /dev/sdc -x 1 -o document.png # extract first image from sd-card
dpenctl -d usb -r dpen.raw               # cache raw usb-data to file dpen.raw
dpenctl -d dpen.raw -l -x 2 -o doc2.png  # use cache-file (faster!)

Build java:
cd src; make java
Copy java/libdpen_java.so in your java-native-library-path

Credits:
========
Thanks to Denis Cote <denisco@ica.net> for providing details of the
USB-communication-protocol!