tesseract::TessClassifier Class Reference

#include <tessclassifier.h>

Inheritance diagram for tesseract::TessClassifier:

Public Member Functions
	TessClassifier (bool pruner_only, tesseract::Classify *classify)
virtual	~TessClassifier ()=default
virtual int	UnicharClassifySample (const TrainingSample &sample, Pix *page_pix, int debug, UNICHAR_ID keep_this, GenericVector< UnicharRating > *results)
virtual const ShapeTable *	GetShapeTable () const
virtual const UNICHARSET &	GetUnicharset () const
virtual int	DisplayClassifyAs (const TrainingSample &sample, Pix *page_pix, int unichar_id, int index, PointerVector< ScrollView > *windows)
Public Member Functions inherited from tesseract::ShapeClassifier
virtual	~ShapeClassifier ()=default
virtual int	BestShapeForUnichar (const TrainingSample &sample, Pix *page_pix, UNICHAR_ID unichar_id, ShapeRating *result)
virtual void	DebugDisplay (const TrainingSample &sample, Pix *page_pix, UNICHAR_ID unichar_id)
virtual void	UnicharPrintResults (const char *context, const GenericVector< UnicharRating > &results) const
virtual void	PrintResults (const char *context, const GenericVector< ShapeRating > &results) const

Additional Inherited Members
Protected Member Functions inherited from tesseract::ShapeClassifier
virtual int	ClassifySample (const TrainingSample &sample, Pix *page_pix, int debug, UNICHAR_ID keep_this, GenericVector< ShapeRating > *results)
void	FilterDuplicateUnichars (GenericVector< ShapeRating > *results) const

Detailed Description

Definition at line 36 of file tessclassifier.h.

Constructor & Destructor Documentation

TessClassifier()

tesseract::TessClassifier::TessClassifier ( bool  pruner_only, tesseract::Classify *  classify  )

inline

Definition at line 38 of file tessclassifier.h.

    : pruner_only_(pruner_only), classify_(classify) {}

~TessClassifier()

virtual tesseract::TessClassifier::~TessClassifier ( )

virtualdefault

Member Function Documentation

DisplayClassifyAs()

int tesseract::TessClassifier::DisplayClassifyAs ( const TrainingSample &  sample, Pix *  page_pix, int  unichar_id, int  index, PointerVector< ScrollView > *  windows  )

virtual

Reimplemented from tesseract::ShapeClassifier.

Definition at line 68 of file tessclassifier.cpp.

                                        {
  int shape_id = unichar_id;
  // TODO(rays) Fix this so it works with both flat and real shapetables.
  //  if (GetShapeTable() != nullptr)
  //  shape_id = BestShapeForUnichar(sample, page_pix, unichar_id, nullptr);
  if (shape_id < 0) return index;
  if (UnusedClassIdIn(classify_->PreTrainedTemplates, shape_id)) {
    tprintf("No built-in templates for class/shape %d\n", shape_id);
    return index;
  }
  classify_->ShowBestMatchFor(shape_id, sample.features(),
                              sample.num_features());
  return index;
}

GetShapeTable()

const ShapeTable * tesseract::TessClassifier::GetShapeTable ( ) const

virtual

Implements tesseract::ShapeClassifier.

Definition at line 54 of file tessclassifier.cpp.

                                                      {
  return classify_->shape_table();
}

GetUnicharset()

const UNICHARSET & tesseract::TessClassifier::GetUnicharset ( ) const

virtual

Reimplemented from tesseract::ShapeClassifier.

Definition at line 59 of file tessclassifier.cpp.

                                                      {
  return classify_->unicharset;
}

UnicharClassifySample()

int tesseract::TessClassifier::UnicharClassifySample ( const TrainingSample &  sample, Pix *  page_pix, int  debug, UNICHAR_ID  keep_this, GenericVector< UnicharRating > *  results  )

virtual

Reimplemented from tesseract::ShapeClassifier.

Definition at line 31 of file tessclassifier.cpp.

                                                                 {
  const int old_matcher_level = classify_->matcher_debug_level;
  const int old_matcher_flags = classify_->matcher_debug_flags;
  const int old_classify_level = classify_->classify_debug_level;
  if (debug) {
    // Explicitly set values of various control parameters to generate debug
    // output if required, restoring the old values after classifying.
    classify_->matcher_debug_level.set_value(2);
    classify_->matcher_debug_flags.set_value(25);
    classify_->classify_debug_level.set_value(3);
  }
  classify_->CharNormTrainingSample(pruner_only_, keep_this, sample, results);
  if (debug) {
    classify_->matcher_debug_level.set_value(old_matcher_level);
    classify_->matcher_debug_flags.set_value(old_matcher_flags);
    classify_->classify_debug_level.set_value(old_classify_level);
  }
  return results->size();
}

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The documentation for this class was generated from the following files:

• /usr/src/tesseract-ocr.master/src/classify/tessclassifier.h
• /usr/src/tesseract-ocr.master/src/classify/tessclassifier.cpp