/**
* @name fix_sp_fp_word()
* Test the current word to see if it can be split by deleting noise blobs. If
* so, do the business.
* Return with the iterator pointing to the same place if the word is unchanged,
* or the last of the replacement words.
*/
void Tesseract::fix_sp_fp_word(WERD_RES_IT &word_res_it, ROW *row,
BLOCK* block) {
WERD_RES *word_res;
WERD_RES_LIST sub_word_list;
WERD_RES_IT sub_word_list_it(&sub_word_list);
inT16 blob_index;
inT16 new_length;
float junk;
word_res = word_res_it.data();
if (word_res->word->flag(W_REP_CHAR) ||
word_res->combination ||
word_res->part_of_combo ||
!word_res->word->flag(W_DONT_CHOP))
return;
blob_index = worst_noise_blob(word_res, &junk);
if (blob_index < 0)
return;
if (debug_fix_space_level > 1) {
tprintf("FP fixspace working on \"%s\"\n",
word_res->best_choice->unichar_string().string());
}
word_res->word->rej_cblob_list()->sort(c_blob_comparator);
sub_word_list_it.add_after_stay_put(word_res_it.extract());
fix_noisy_space_list(sub_word_list, row, block);
new_length = sub_word_list.length();
word_res_it.add_list_before(&sub_word_list);
for (; !word_res_it.at_last() && new_length > 1; new_length--) {
word_res_it.forward();
}
}
/*************************************************************************
* fix_sp_fp_word()
* Test the current word to see if it can be split by deleting noise blobs. If
* so, do the buisiness.
* Return with the iterator pointing to the same place if the word is unchanged,
* or the last of the replacement words.
*************************************************************************/
void fix_sp_fp_word(WERD_RES_IT &word_res_it, ROW *row) {
WERD_RES *word_res;
WERD_RES_LIST sub_word_list;
WERD_RES_IT sub_word_list_it(&sub_word_list);
inT16 blob_index;
inT16 new_length;
float junk;
word_res = word_res_it.data ();
if (!fixsp_check_for_fp_noise_space ||
word_res->word->flag (W_REP_CHAR) ||
word_res->combination ||
word_res->part_of_combo || !word_res->word->flag (W_DONT_CHOP))
return;
blob_index = worst_noise_blob (word_res, &junk);
if (blob_index < 0)
return;
#ifndef SECURE_NAMES
if (debug_fix_space_level > 1) {
tprintf ("FP fixspace working on \"%s\"\n",
word_res->best_choice->string ().string ());
}
#endif
gblob_sort_list ((PBLOB_LIST *) word_res->word->rej_cblob_list (), FALSE);
sub_word_list_it.add_after_stay_put (word_res_it.extract ());
fix_noisy_space_list(sub_word_list, row);
new_length = sub_word_list.length ();
word_res_it.add_list_before (&sub_word_list);
for (; (!word_res_it.at_last () && (new_length > 1)); new_length--) {
word_res_it.forward ();
}
}
/**
* break_noisiest_blob_word()
* Find the word with the blob which looks like the worst noise.
* Break the word into two, deleting the noise blob.
*/
void Tesseract::break_noisiest_blob_word(WERD_RES_LIST &words) {
WERD_RES_IT word_it(&words);
WERD_RES_IT worst_word_it;
float worst_noise_score = 9999;
int worst_blob_index = -1; // Noisiest blob of noisiest wd
int blob_index; // of wds noisiest blob
float noise_score; // of wds noisiest blob
WERD_RES *word_res;
C_BLOB_IT blob_it;
C_BLOB_IT rej_cblob_it;
C_BLOB_LIST new_blob_list;
C_BLOB_IT new_blob_it;
C_BLOB_IT new_rej_cblob_it;
WERD *new_word;
inT16 start_of_noise_blob;
inT16 i;
for (word_it.mark_cycle_pt(); !word_it.cycled_list(); word_it.forward()) {
blob_index = worst_noise_blob(word_it.data(), &noise_score);
if (blob_index > -1 && worst_noise_score > noise_score) {
worst_noise_score = noise_score;
worst_blob_index = blob_index;
worst_word_it = word_it;
}
}
if (worst_blob_index < 0) {
words.clear(); // signal termination
return;
}
/* Now split the worst_word_it */
word_res = worst_word_it.data();
/* Move blobs before noise blob to a new bloblist */
new_blob_it.set_to_list(&new_blob_list);
blob_it.set_to_list(word_res->word->cblob_list());
for (i = 0; i < worst_blob_index; i++, blob_it.forward()) {
new_blob_it.add_after_then_move(blob_it.extract());
}
start_of_noise_blob = blob_it.data()->bounding_box().left();
delete blob_it.extract(); // throw out noise blob
new_word = new WERD(&new_blob_list, word_res->word);
new_word->set_flag(W_EOL, FALSE);
word_res->word->set_flag(W_BOL, FALSE);
word_res->word->set_blanks(1); // After break
new_rej_cblob_it.set_to_list(new_word->rej_cblob_list());
rej_cblob_it.set_to_list(word_res->word->rej_cblob_list());
for (;
(!rej_cblob_it.empty() &&
(rej_cblob_it.data()->bounding_box().left() < start_of_noise_blob));
rej_cblob_it.forward()) {
new_rej_cblob_it.add_after_then_move(rej_cblob_it.extract());
}
WERD_RES* new_word_res = new WERD_RES(new_word);
new_word_res->combination = TRUE;
worst_word_it.add_before_then_move(new_word_res);
word_res->ClearResults();
}
