Janusz S. Bien wrote: > *** error: Input file format using magic 'P2' is unknown.
PGM and PBM files (generally, PNM files) can be written in two possible modes: 'ascii' and 'binary'. (See e.g. http://www.csit.fsu.edu/~burkardt/data/pnm/pnm.html) Unpaper supports BINARY mode only, because this is the default format written by scanimage/scanadf, and in most cases one wouldn't want to use ascii-mode images anyway. They use up much more space on the disk, and I don't see any advantage of them (unless you would want to edit single pixels using a text-editor...) The files you use cannot be loaded by unpaper because they are written in ascii-mode. Please try to convert them to binary PBM/PGM first. >> Both input files has been created with convert from a tif file. I would expect convert to have an option for chosing between ascii and binary mode (but I don't know details about it). A binary PBM file should start with a byte sequence of 'P4' (called the 'magic number'), a binary PGM file begins with 'P5'. You should be able to find out by opening the file in a text-editor. Or use Gimp to load and then save-as your files. Gimp will ask you whether to use ascii or binary format (at least my version does). Hope that helps, Jens > *** 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 > '
