Usage:
  /usr/bin/text2image [OPTION ...]

  --debug_level  Level of Trainer debugging  (type:int default:0)
  --load_images  Load images with tr files  (type:int default:0)
  --tlog_level  Minimum logging level for tlog() output  (type:int default:0)
  --exposure  Exposure level in photocopier  (type:int default:0)
  --resolution  Pixels per inch  (type:int default:300)
  --xsize  Width of output image  (type:int default:3600)
  --ysize  Height of output image  (type:int default:4800)
  --max_pages  Maximum number of pages to output (0=unlimited)  (type:int default:0)
  --margin  Margin round edges of image  (type:int default:100)
  --ptsize  Size of printed text  (type:int default:12)
  --leading  Inter-line space (in pixels)  (type:int default:12)
  --box_padding  Padding around produced bounding boxes  (type:int default:0)
  --glyph_resized_size  Each glyph is square with this side length in pixels  (type:int default:0)
  --glyph_num_border_pixels_to_pad  Final_size=glyph_resized_size+2*glyph_num_border_pixels_to_pad  (type:int default:0)
  --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)
  --char_spacing  Inter-character space in ems  (type:double default:0)
  --underline_start_prob  Fraction of words to underline (value in [0,1])  (type:double default:0)
  --underline_continuation_prob  Fraction of words to underline (value in [0,1])  (type:double default:0)
  --min_coverage  If find_fonts==true, the minimum coverage the font has of the characters in the text file to include it, between 0 and 1.  (type:double default:1)
  --degrade_image  Degrade rendered image with speckle noise, dilation/erosion and rotation  (type:bool default:true)
  --rotate_image  Rotate the image in a random way.  (type:bool default:true)
  --distort_image  Degrade rendered image with noise, blur, invert.  (type:bool default:false)
  --invert  Invert the image  (type:bool default:true)
  --white_noise  Add  Gaussian Noise  (type:bool default:true)
  --smooth_noise  Smoothen Noise  (type:bool default:true)
  --blur  Blur the image  (type:bool default:true)
  --strip_unrenderable_words  Remove unrenderable words from source text  (type:bool default:true)
  --ligatures  Rebuild and render ligatures  (type:bool default:false)
  --find_fonts  Search for all fonts that can render the text  (type:bool default:false)
  --render_per_font  If find_fonts==true, render each font to its own image. Image filenames are of the form output_name.font_name.tif  (type:bool default:true)
  --list_available_fonts  List available fonts and quit.  (type:bool default:false)
  --render_ngrams  Put each space-separated entity from the input file into one bounding box. The ngrams in the input file will be randomly permuted before rendering (so that there is sufficient variety of characters on each line).  (type:bool default:false)
  --output_word_boxes  Output word bounding boxes instead of character boxes. This is used for Cube training, and implied by --render_ngrams.  (type:bool default:false)
  --bidirectional_rotation  Rotate the generated characters both ways.  (type:bool default:false)
  --only_extract_font_properties  Assumes that the input file contains a list of ngrams. Renders each ngram, extracts spacing properties and records them in output_base/[font_name].fontinfo file.  (type:bool default:false)
  --output_individual_glyph_images  If true also outputs individual character images  (type:bool default:false)
  --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:)
  --text  File name of text input to process  (type:string default:)
  --outputbase  Basename for output image/box file  (type:string default:)
  --writing_mode  Specify one of the following writing modes.
'horizontal' : Render regular horizontal text. (default)
'vertical' : Render vertical text. Glyph orientation is selected by Pango.
'vertical-upright' : Render vertical text. Glyph  orientation is set to be upright.  (type:string default:horizontal)
  --font  Font description name to use  (type:string default:Arial)
  --unicharset_file  File with characters in the unicharset. If --render_ngrams is true and --unicharset_file is specified, ngrams with characters that are not in unicharset will be omitted  (type:string default:)