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* File: search_object.h
* Description: Declaration of the Beam Search Object Class
* Author: Ahmad Abdulkader
* Created: 2008
*
* (C) Copyright 2008, Google Inc.
** 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.
*
**********************************************************************/
// The SearchObject class represents a char_samp (a word bitmap) that is
// being searched for characters (or recognizeable entities).
// This is an abstract class that all SearchObjects should inherit from
// A SearchObject class provides methods to:
// 1- Returns the count of segments
// 2- Recognize a segment range
// 3- Creates a CharSamp for a segment range
#ifndef SEARCH_OBJECT_H
#define SEARCH_OBJECT_H
#include "char_altlist.h"
#include "char_samp.h"
#include "cube_reco_context.h"
namespace tesseract {
class SearchObject {
public:
explicit SearchObject(CubeRecoContext *cntxt) { cntxt_ = cntxt; }
virtual ~SearchObject() {}
virtual int SegPtCnt() = 0;
virtual CharAltList *RecognizeSegment(int start_pt, int end_pt) = 0;
virtual CharSamp *CharSample(int start_pt, int end_pt) = 0;
virtual Box* CharBox(int start_pt, int end_pt) = 0;
virtual int SpaceCost(int seg_pt) = 0;
virtual int NoSpaceCost(int seg_pt) = 0;
virtual int NoSpaceCost(int start_pt, int end_pt) = 0;
protected:
CubeRecoContext *cntxt_;
};
}
#endif // SEARCH_OBJECT_H
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