reject.h File Reference

Go to the source code of this file.

Functions
void	reject_blanks (WERD_RES *word)
void	reject_poor_matches (WERD_RES *word)
float	compute_reject_threshold (WERD_CHOICE *word)
bool	word_contains_non_1_digit (const char *word, const char *word_lengths)
void	dont_allow_1Il (WERD_RES *word)
void	flip_hyphens (WERD_RES *word)
void	flip_0O (WERD_RES *word)
bool	non_0_digit (const char *str, int length)

Function Documentation

compute_reject_threshold()

float compute_reject_threshold

(

WERD_CHOICE *

word

)

Definition at line 233 of file reject.cpp.

                                                  {
  float threshold;               // rejection threshold
  float bestgap = 0.0f;          // biggest gap
  float gapstart;                // bottom of gap

  int blob_count = word->length();
  GenericVector<float> ratings;
  ratings.resize_no_init(blob_count);
  for (int i = 0; i < blob_count; ++i) {
    ratings[i] = word->certainty(i);
  }
  ratings.sort();
  gapstart = ratings[0] - 1;     // all reject if none better
  if (blob_count >= 3) {
    for (int index = 0; index < blob_count - 1; index++) {
      if (ratings[index + 1] - ratings[index] > bestgap) {
        bestgap = ratings[index + 1] - ratings[index];
        // find biggest
        gapstart = ratings[index];
      }
    }
  }
  threshold = gapstart + bestgap / 2;

  return threshold;
}

dont_allow_1Il()

void dont_allow_1Il

(

WERD_RES *

word

)

flip_0O()

void flip_0O

(

WERD_RES *

word

)

flip_hyphens()

void flip_hyphens

(

WERD_RES *

word

)

non_0_digit()

bool non_0_digit	(	const char *	str,
		int	length
	)

reject_blanks()

void reject_blanks

(

WERD_RES *

word

)

Definition at line 185 of file reject.cpp.

                                   {
  int16_t i;
  int16_t offset;

  for (i = 0, offset = 0; word->best_choice->unichar_string()[offset] != '\0';
       offset += word->best_choice->unichar_lengths()[i], i += 1) {
    if (word->best_choice->unichar_string()[offset] == ' ')
                                 //rej unrecognised blobs
      word->reject_map[i].setrej_tess_failure ();
  }
}

reject_poor_matches()

void reject_poor_matches

(

WERD_RES *

word

)

Definition at line 214 of file reject.cpp.

                                         {
  float threshold = compute_reject_threshold(word->best_choice);
  for (int i = 0; i < word->best_choice->length(); ++i) {
    if (word->best_choice->unichar_id(i) == UNICHAR_SPACE)
      word->reject_map[i].setrej_tess_failure();
    else if (word->best_choice->certainty(i) < threshold)
      word->reject_map[i].setrej_poor_match();
  }
}

word_contains_non_1_digit()

bool word_contains_non_1_digit	(	const char *	word,
		const char *	word_lengths
	)