Beispiel #1
0
// Returns true if *this and other agree on the baseline and x-height
// to within some tolerance based on a given estimate of the x-height.
bool BLOB_CHOICE::PosAndSizeAgree(const BLOB_CHOICE& other, float x_height,
                                  bool debug) const {
  double baseline_diff = fabs(yshift() - other.yshift());
  if (baseline_diff > kMaxBaselineDrift * x_height) {
    if (debug) {
      tprintf("Baseline diff %g for %d v %d\n",
              baseline_diff, unichar_id_, other.unichar_id_);
    }
    return false;
  }
  double this_range = max_xheight() - min_xheight();
  double other_range = other.max_xheight() - other.min_xheight();
  double denominator = ClipToRange(MIN(this_range, other_range),
                                   1.0, kMaxOverlapDenominator * x_height);
  double overlap = MIN(max_xheight(), other.max_xheight()) -
                   MAX(min_xheight(), other.min_xheight());
  overlap /= denominator;
  if (debug) {
    tprintf("PosAndSize for %d v %d: bl diff = %g, ranges %g, %g / %g ->%g\n",
            unichar_id_, other.unichar_id_, baseline_diff,
            this_range, other_range, denominator, overlap);
  }

  return overlap >= kMinXHeightMatch;
}
Beispiel #2
0
/**
 * BLOB_CHOICE::BLOB_CHOICE
 *
 * Constructor to build a BLOB_CHOICE from another BLOB_CHOICE.
 */
BLOB_CHOICE::BLOB_CHOICE(const BLOB_CHOICE &other) {
  unichar_id_ = other.unichar_id();
  rating_ = other.rating();
  certainty_ = other.certainty();
  fontinfo_id_ = other.fontinfo_id();
  fontinfo_id2_ = other.fontinfo_id2();
  script_id_ = other.script_id();
  matrix_cell_ = other.matrix_cell_;
  min_xheight_ = other.min_xheight_;
  max_xheight_ = other.max_xheight_;
  yshift_ = other.yshift();
  classifier_ = other.classifier_;
}