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// Copyright 2008 Google Inc. All Rights Reserved.
// Author: scharron@google.com (Samuel Charron)
//
// 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 TESSERACT_TRAINING_COMMONTRAINING_H_
#define TESSERACT_TRAINING_COMMONTRAINING_H_
#ifdef HAVE_CONFIG_H
#include "config_auto.h"
#endif
#include "export.h"
#include "commandlineflags.h"
#include "tprintf.h"
#include <tesseract/baseapi.h>
#include <memory>
TESS_COMMON_TRAINING_API
void ParseArguments(int* argc, char*** argv);
namespace tesseract {
// Check whether the shared tesseract library is the right one.
// This function must be inline because otherwise it would be part of
// the shared library, so it could not compare the versions.
static inline void CheckSharedLibraryVersion()
{
#ifdef HAVE_CONFIG_H
if (!!strcmp(TESSERACT_VERSION_STR, TessBaseAPI::Version())) {
tprintf("ERROR: shared library version mismatch (was %s, expected %s\n"
"Did you use a wrong shared tesseract library?\n",
TessBaseAPI::Version(), TESSERACT_VERSION_STR);
exit(1);
}
#endif
}
} // namespace tesseract
#ifndef DISABLED_LEGACY_ENGINE
#include "cluster.h"
#include "featdefs.h"
#include "intproto.h"
#include "oldlist.h"
namespace tesseract {
class Classify;
class MasterTrainer;
class ShapeTable;
}
//////////////////////////////////////////////////////////////////////////////
// Globals ///////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
TESS_COMMON_TRAINING_API
extern tesseract::FEATURE_DEFS_STRUCT feature_defs;
// Must be defined in the file that "implements" commonTraining facilities.
TESS_COMMON_TRAINING_API
extern tesseract::CLUSTERCONFIG Config;
//////////////////////////////////////////////////////////////////////////////
// Structs ///////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
typedef struct
{
char *Label;
int SampleCount;
int font_sample_count;
tesseract::LIST List;
}
LABELEDLISTNODE, *LABELEDLIST;
typedef struct
{
char* Label;
int NumMerged[MAX_NUM_PROTOS];
tesseract::CLASS_TYPE Class;
}MERGE_CLASS_NODE;
using MERGE_CLASS = MERGE_CLASS_NODE*;
//////////////////////////////////////////////////////////////////////////////
// Functions /////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
namespace tesseract {
// Helper loads shape table from the given file.
ShapeTable* LoadShapeTable(const STRING& file_prefix);
// Helper to write the shape_table.
TESS_COMMON_TRAINING_API
void WriteShapeTable(const STRING& file_prefix, const ShapeTable& shape_table);
// Creates a MasterTraininer and loads the training data into it:
// Initializes feature_defs and IntegerFX.
// Loads the shape_table if shape_table != nullptr.
// Loads initial unicharset from -U command-line option.
// If FLAGS_input_trainer is set, loads the majority of data from there, else:
// Loads font info from -F option.
// Loads xheights from -X option.
// Loads samples from .tr files in remaining command-line args.
// Deletes outliers and computes canonical samples.
// If FLAGS_output_trainer is set, saves the trainer for future use.
// Computes canonical and cloud features.
// If shape_table is not nullptr, but failed to load, make a fake flat one,
// as shape clustering was not run.
TESS_COMMON_TRAINING_API
std::unique_ptr<MasterTrainer> LoadTrainingData(int argc, const char* const * argv,
bool replication,
ShapeTable** shape_table,
STRING* file_prefix);
} // namespace tesseract.
TESS_COMMON_TRAINING_API
const char *GetNextFilename(int argc, const char* const * argv, int &tessoptind);
LABELEDLIST FindList(
tesseract::LIST List,
char *Label);
TESS_COMMON_TRAINING_API
LABELEDLIST NewLabeledList(
const char *Label);
TESS_COMMON_TRAINING_API
void ReadTrainingSamples(const tesseract::FEATURE_DEFS_STRUCT& feature_defs,
const char *feature_name, int max_samples,
tesseract::UNICHARSET* unicharset,
FILE* file, tesseract::LIST* training_samples);
void WriteTrainingSamples(
const tesseract::FEATURE_DEFS_STRUCT &FeatureDefs,
char *Directory,
tesseract::LIST CharList,
const char *program_feature_type);
TESS_COMMON_TRAINING_API
void FreeTrainingSamples(
tesseract::LIST CharList);
TESS_COMMON_TRAINING_API
void FreeLabeledList(
LABELEDLIST LabeledList);
TESS_COMMON_TRAINING_API
void FreeLabeledClassList(
tesseract::LIST ClassListList);
TESS_COMMON_TRAINING_API
tesseract::CLUSTERER *SetUpForClustering(
const tesseract::FEATURE_DEFS_STRUCT &FeatureDefs,
LABELEDLIST CharSample,
const char *program_feature_type);
TESS_COMMON_TRAINING_API
tesseract::LIST RemoveInsignificantProtos(
tesseract::LIST ProtoList,
bool KeepSigProtos,
bool KeepInsigProtos,
int N);
TESS_COMMON_TRAINING_API
void CleanUpUnusedData(
tesseract::LIST ProtoList);
TESS_COMMON_TRAINING_API
void MergeInsignificantProtos(
tesseract::LIST ProtoList,
const char *label,
tesseract::CLUSTERER *Clusterer,
tesseract::CLUSTERCONFIG *Config);
TESS_COMMON_TRAINING_API
MERGE_CLASS FindClass(
tesseract::LIST List,
const char *Label);
TESS_COMMON_TRAINING_API
MERGE_CLASS NewLabeledClass(
const char *Label);
TESS_COMMON_TRAINING_API
tesseract::CLASS_STRUCT* SetUpForFloat2Int(const tesseract::UNICHARSET& unicharset,
tesseract::LIST LabeledClassList);
void Normalize(
float *Values);
TESS_COMMON_TRAINING_API
void FreeNormProtoList(
tesseract::LIST CharList);
TESS_COMMON_TRAINING_API
void AddToNormProtosList(
tesseract::LIST* NormProtoList,
tesseract::LIST ProtoList,
char *CharName);
TESS_COMMON_TRAINING_API
int NumberOfProtos(
tesseract::LIST ProtoList,
bool CountSigProtos,
bool CountInsigProtos);
void allocNormProtos();
#endif // def DISABLED_LEGACY_ENGINE
#endif // TESSERACT_TRAINING_COMMONTRAINING_H_
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