[sane-devel] Unpaper 1.0.1 problem

[Janusz S. Bień]

I am quite new to scanned image processing, so I am probably making
some stupid mistake. However when I call

./unpaper -vv --layout double 01.pgm unpaper01.pgm

I get

Processing sheet: 01.pgm -> unpaper01.pgm
loading file 01.pgm.
*** error: Input file format using magic 'P2' is unknown.
*** error: Cannot load image 01.pgm.

When I call

./unpaper -vv --layout double 01.pbm unpaper01.pbm

I get 

loading file 01.pbm.
*** error: Input file format using magic 'P1' is unknown.
*** error: Cannot load image 01.pbm.

Both input files has been created with convert from a tif file.

I will appreciate your help.

Best regards

Janusz

-- 
                     ,   
dr hab. Janusz S. Bien, prof. UW -  Uniwersytet Warszawski (Katedra Lingwistyki Formalnej)
Prof. Janusz S. Bien - Warsaw Uniwersity (Chair of Formal Linguistics)
jsbien@mimuw.edu.pl, jsbien@uw.edu.pl, http://www.mimuw.edu.pl/~jsbien/, http://www.klf.uw.edu.pl