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/* GNU Ocrad - Optical Character Recognition program
Copyright (C) 2003-2024 Antonio Diaz Diaz.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class Features
{
const Blob & b; // Blob to witch these features belong
mutable bool hbar_initialized, vbar_initialized;
mutable std::vector< Rectangle > hbar_, vbar_;
mutable std::vector< std::vector< Csegment > > row_scan, col_scan;
Features( const Features & ); // declared as private
void operator=( const Features & ); // declared as private
void row_scan_init() const;
void col_scan_init() const;
public:
mutable Profile lp, tp, rp, bp, hp, wp;
explicit Features( const Blob & b_ );
// const Blob & blob() const { return b; }
const Rectangle & hbar( const int i ) const { return hbar_[i]; }
const Rectangle & vbar( const int i ) const { return vbar_[i]; }
int hbars() const;
int vbars() const;
// number of vertical traces crossing every row
int segments_in_row( const int row ) const
{
if( row_scan.empty() ) row_scan_init();
return row_scan[row-b.top()].size();
}
// number of horizontal traces crossing every column
int segments_in_col( const int col ) const
{
if( col_scan.empty() ) col_scan_init();
return col_scan[col-b.left()].size();
}
// vertical segment containing the point (row,col), if any
Csegment v_segment( const int row, const int col ) const;
int test_235Esz( const Charset & charset ) const;
int test_49ARegpq( const Rectangle & charbox ) const;
int test_4ADQao( const Charset & charset, const Rectangle & charbox ) const;
int test_6abd( const Charset & charset ) const;
int test_EFIJLlT( const Charset & charset, const Rectangle & charbox ) const;
int test_c() const;
int test_frst( const Rectangle & charbox ) const;
int test_G() const;
int test_HKMNUuvwYy( const Rectangle & charbox ) const;
int test_hknwx( const Rectangle & charbox ) const;
int test_s_cedilla() const;
bool test_comma() const;
int test_easy( const Rectangle & charbox ) const;
int test_line( const Rectangle & charbox ) const;
int test_solid( const Rectangle & charbox ) const;
int test_misc( const Rectangle & charbox ) const;
};
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