[sane-devel] [ANN] unpaper 0.2 - post-processing scanned and photocopied book pages

[Jens Gulden]

Hello,

unpaper is a post-processing tool for scanned sheets of paper, especially for book pages that have 
been scanned from previously created photocopies.

Besides new support for color-scans, speed optimization for deskewing and a number of bug fixes, 
version 0.2 now also comes with a detailed user documentation including several explaining diagrams.

Available at http://unpaper.berlios.de/.

 From the readme:
2006-05-09, version 0.2
- Version number fallback to 0.2 (instead of counting up to 1.2). This better
   reflects the current development status and appears more suitable in an
   open-source context.
- User documentation with several explaining diagrams added, see file
   'doc/index.html'.
- Color support added. Files of type PPM can be read, processed and written
   now. By default, unpaper uses the same image format for the output file as
   has been read from an input file, i.e. if your input is PPM, the output will
   be PPM automatically, if the input is PGM, the output will be PGM etc. Use
   parameter --type pbm|pgm|ppm to force an output file format independently
   from the input file format.
- Better image rotation implementation. Auto-rotation of pages is now done
   much faster.
- The --cache option became obsolete (due to new image rotation
   implementation).
- The compiler-switch -DNOSINCOS became obsolete (due to new image rotation
   implementation). It is no longer needed for compilation on some platforms.
- Changed to gcc version 4.1 for creating the Linux binary included in the
   distribution archive. gcc 4.1's executable appears to be about 20% faster
   than the one created with gcc 3.3.6.
- Added '-fomit-frame-pointer' and '-ftree-vectorize' to compiler options.
   (Thanks to Olaf Marzocchi for the hint about -ftree-vectorize.)
- Fix: the first pixel of an image is now correctly read (was read wrong in
   previous versions).
- Minor fixes.

Enjoy,
Jens