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56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
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/**********************************************************************
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* File: search_object.h
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* Description: Declaration of the Beam Search Object Class
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* Author: Ahmad Abdulkader
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* Created: 2008
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*
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* (C) Copyright 2008, Google Inc.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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// The SearchObject class represents a char_samp (a word bitmap) that is
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// being searched for characters (or recognizeable entities).
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// This is an abstract class that all SearchObjects should inherit from
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// A SearchObject class provides methods to:
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// 1- Returns the count of segments
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// 2- Recognize a segment range
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// 3- Creates a CharSamp for a segment range
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#ifndef SEARCH_OBJECT_H
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#define SEARCH_OBJECT_H
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#include "char_altlist.h"
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#include "char_samp.h"
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#include "cube_reco_context.h"
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namespace tesseract {
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class SearchObject {
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public:
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explicit SearchObject(CubeRecoContext *cntxt) { cntxt_ = cntxt; }
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virtual ~SearchObject() {}
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virtual int SegPtCnt() = 0;
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virtual CharAltList *RecognizeSegment(int start_pt, int end_pt) = 0;
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virtual CharSamp *CharSample(int start_pt, int end_pt) = 0;
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virtual Box* CharBox(int start_pt, int end_pt) = 0;
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virtual int SpaceCost(int seg_pt) = 0;
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virtual int NoSpaceCost(int seg_pt) = 0;
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virtual int NoSpaceCost(int start_pt, int end_pt) = 0;
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protected:
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CubeRecoContext *cntxt_;
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};
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}
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#endif // SEARCH_OBJECT_H
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