tesseract/textord/gap_map.h
2016-11-18 15:53:11 -08:00

49 lines
1.6 KiB
C++

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef GAP_MAP_H
#define GAP_MAP_H
#include "blobbox.h"
class GAPMAP
{
public:
GAPMAP( //constructor
TO_BLOCK *block);
~GAPMAP () { //destructor
if (map != NULL)
free_mem(map);
}
BOOL8 table_gap( //Is gap a table?
inT16 left, //From here
inT16 right); //To here
private:
inT16 total_rows; //in block
inT16 min_left; //Left extreme
inT16 max_right; //Right extreme
inT16 bucket_size; // half an x ht
inT16 *map; //empty counts
inT16 map_max; //map[0..max_map] defind
BOOL8 any_tabs;
};
/*-----------------------------*/
extern BOOL_VAR_H (gapmap_debug, FALSE, "Say which blocks have tables");
extern BOOL_VAR_H (gapmap_use_ends, FALSE,
"Use large space at start and end of rows");
extern BOOL_VAR_H (gapmap_no_isolated_quanta, FALSE,
"Ensure gaps not less than 2quanta wide");
extern double_VAR_H (gapmap_big_gaps, 1.75, "xht multiplier");
#endif