Method SetupApplyBoxes

deps/tesseract/ccmain/applybox.cpp:217–248

Builds a PAGE_RES from the block_list in the way required for ApplyBoxes: All fuzzy spaces are removed, and all the words are maximally chopped.

/// Builds a PAGE_RES from the block_list in the way required for ApplyBoxes:
/// All fuzzy spaces are removed, and all the words are maximally chopped.
PAGE_RES* Tesseract::SetupApplyBoxes(const GenericVector<TBOX>& boxes,
                                     BLOCK_LIST *block_list) {
  PreenXHeights(block_list);
  // Strip all fuzzy space markers to simplify the PAGE_RES.
  BLOCK_IT b_it(block_list);
  for (b_it.mark_cycle_pt(); !b_it.cycled_list(); b_it.forward()) {
    BLOCK* block = b_it.data();
    ROW_IT r_it(block->row_list());
    for (r_it.mark_cycle_pt(); !r_it.cycled_list(); r_it.forward ()) {
      ROW* row = r_it.data();
      WERD_IT w_it(row->word_list());
      for (w_it.mark_cycle_pt(); !w_it.cycled_list(); w_it.forward()) {
        WERD* word = w_it.data();
        if (word->cblob_list()->empty()) {
          delete w_it.extract();
        } else {
          word->set_flag(W_FUZZY_SP, false);
          word->set_flag(W_FUZZY_NON, false);
        }
      }
    }
  }
  PAGE_RES* page_res = new PAGE_RES(false, block_list, NULL);
  PAGE_RES_IT pr_it(page_res);
  WERD_RES* word_res;
  while ((word_res = pr_it.word()) != NULL) {
    MaximallyChopWord(boxes, pr_it.block()->block,
                      pr_it.row()->row, word_res);
    pr_it.forward();
  }
  return page_res;
}

/// Tests the chopper by exhaustively running chop_one_blob.
/// The word_res will contain filled chopped_word, seam_array, denorm,