twain3.0/3rdparty/hgOCR/include/ccmain/cubeclassifier.h

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// Copyright 2011 Google Inc. All Rights Reserved.
// Author: rays@google.com (Ray Smith)
///////////////////////////////////////////////////////////////////////
// File: cubeclassifier.h
// Description: Cube implementation of a ShapeClassifier.
// Author: Ray Smith
// Created: Wed Nov 23 10:36:32 PST 2011
//
// (C) Copyright 2011, 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.
//
///////////////////////////////////////////////////////////////////////
#ifndef THIRD_PARTY_TESSERACT_CCMAIN_CUBECLASSIFIER_H_
#define THIRD_PARTY_TESSERACT_CCMAIN_CUBECLASSIFIER_H_
#include "shapeclassifier.h"
#include "platform.h"
namespace tesseract {
class Classify;
class CubeRecoContext;
class ShapeTable;
class TessClassifier;
class Tesseract;
class TrainingSample;
struct UnicharRating;
// Cube implementation of a ShapeClassifier.
class TESS_API CubeClassifier : public ShapeClassifier {
public:
explicit CubeClassifier(Tesseract* tesseract);
virtual ~CubeClassifier();
// Classifies the given [training] sample, writing to results.
// See ShapeClassifier for a full description.
virtual int UnicharClassifySample(const TrainingSample& sample, Pix* page_pix,
int debug, UNICHAR_ID keep_this,
GenericVector<UnicharRating>* results);
// Provides access to the ShapeTable that this classifier works with.
virtual const ShapeTable* GetShapeTable() const;
private:
// Cube objects.
CubeRecoContext* cube_cntxt_;
const ShapeTable& shape_table_;
};
// Combination of Tesseract class pruner with scoring by cube.
class TESS_API CubeTessClassifier : public ShapeClassifier {
public:
explicit CubeTessClassifier(Tesseract* tesseract);
virtual ~CubeTessClassifier();
// Classifies the given [training] sample, writing to results.
// See ShapeClassifier for a full description.
virtual int UnicharClassifySample(const TrainingSample& sample, Pix* page_pix,
int debug, UNICHAR_ID keep_this,
GenericVector<UnicharRating>* results);
// Provides access to the ShapeTable that this classifier works with.
virtual const ShapeTable* GetShapeTable() const;
private:
// Cube objects.
CubeRecoContext* cube_cntxt_;
const ShapeTable& shape_table_;
TessClassifier* pruner_;
};
} // namespace tesseract
#endif /* THIRD_PARTY_TESSERACT_CCMAIN_CUBECLASSIFIER_H_ */