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79 lines
3.1 KiB
C++
79 lines
3.1 KiB
C++
// Copyright 2011 Google Inc. All Rights Reserved.
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// Author: rays@google.com (Ray Smith)
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///////////////////////////////////////////////////////////////////////
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// File: tessclassifier.h
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// Description: Tesseract implementation of a ShapeClassifier.
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// Author: Ray Smith
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// Created: Tue Nov 22 14:10:45 PST 2011
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//
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// (C) Copyright 2011, 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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#ifndef THIRD_PARTY_TESSERACT_CLASSIFY_TESSCLASSIFIER_H_
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#define THIRD_PARTY_TESSERACT_CLASSIFY_TESSCLASSIFIER_H_
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#include "shapeclassifier.h"
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#include "platform.h"
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namespace tesseract {
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class Classify;
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class TrainingSample;
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// Tesseract implementation of a ShapeClassifier.
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// Due to limitations in the content of TrainingSample, this currently
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// only works for the static classifier and only works if the ShapeTable
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// in classify is not NULL.
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class TESS_API TessClassifier : public ShapeClassifier {
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public:
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TessClassifier(bool pruner_only, tesseract::Classify* classify)
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: pruner_only_(pruner_only), classify_(classify) {}
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virtual ~TessClassifier() {}
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// Classifies the given [training] sample, writing to results.
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// See ShapeClassifier for a full description.
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virtual int UnicharClassifySample(const TrainingSample& sample, Pix* page_pix,
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int debug, UNICHAR_ID keep_this,
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GenericVector<UnicharRating>* results);
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// Provides access to the ShapeTable that this classifier works with.
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virtual const ShapeTable* GetShapeTable() const;
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// Provides access to the UNICHARSET that this classifier works with.
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// Only needs to be overridden if GetShapeTable() can return NULL.
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virtual const UNICHARSET& GetUnicharset() const;
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// Displays classification as the given shape_id. Creates as many windows
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// as it feels fit, using index as a guide for placement. Adds any created
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// windows to the windows output and returns a new index that may be used
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// by any subsequent classifiers. Caller waits for the user to view and
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// then destroys the windows by clearing the vector.
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virtual int DisplayClassifyAs(const TrainingSample& sample, Pix* page_pix,
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int unichar_id, int index,
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PointerVector<ScrollView>* windows);
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private:
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// Indicates that this classifier is to use just the ClassPruner, or the
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// full classifier if false.
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bool pruner_only_;
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// Borrowed pointer to the actual Tesseract classifier.
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tesseract::Classify* classify_;
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};
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} // namespace tesseract
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#endif /* THIRD_PARTY_TESSERACT_CLASSIFY_TESSCLASSIFIER_H_ */
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