OCR orientation detection

Paperwork uses the orientation detection feature of Tesseract. It is quite fast and accurate.

If Tesseract is not installed, Paperwork will fallback on Cuneiform. Cuneiform doesn't provide orientation detection. So Paperwork will run Cuneiform on all 4 orientations, and score each of them. The score is established using a dictionary (Enchant/Myspell/Aspell).

Debian

# Spell checking (myspell)
$ sudo apt-get install myspell myspell-<lang>

Fedora

# Spell checking (aspell)
$ sudo yum install aspell aspell-<lang>

Ubuntu

# Spell checking (myspell)
$ sudo apt-get install myspell myspell-<lang>