Usage:
  /usr/bin/shapeclustering -v | --version | /usr/bin/shapeclustering [.tr files ...] [OPTION ...]

  --debug_level  Level of Trainer debugging  (type:int default:0)
  --load_images  Load images with tr files  (type:int default:0)
  --display_cloud_font  Display cloud of this font, canonical_class1  (type:int default:-1)
  --display_canonical_font  Display canonical sample of this font, canonical_class2  (type:int default:-1)
  --clusterconfig_min_samples_fraction  Min number of samples per proto as % of total  (type:double default:0.625)
  --clusterconfig_max_illegal  Max percentage of samples in a cluster which have more than 1 feature in that cluster  (type:double default:0.05)
  --clusterconfig_independence  Desired independence between dimensions  (type:double default:1)
  --clusterconfig_confidence  Desired confidence in prototypes created  (type:double default:1e-06)
  --configfile  File to load more configs from  (type:string default:)
  --D  Directory to write output files to  (type:string default:)
  --F  File listing font properties  (type:string default:font_properties)
  --X  File listing font xheights  (type:string default:)
  --U  File to load unicharset from  (type:string default:unicharset)
  --O  File to write unicharset to  (type:string default:)
  --output_trainer  File to write trainer to  (type:string default:)
  --test_ch  UTF8 test character string  (type:string default:)
  --fonts_dir    (type:string default:)
  --fontconfig_tmpdir    (type:string default:)
  --canonical_class1  Class to show ambigs for  (type:string default:)
  --canonical_class2  Class to show ambigs for  (type:string default:)