Tesseract  3.02
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tesseract::IntFeatureMap Class Reference

#include <intfeaturemap.h>

List of all members.

Public Member Functions

 IntFeatureMap ()
 ~IntFeatureMap ()
int sparse_size () const
int compact_size () const
const IntFeatureSpacefeature_space () const
const IndexMapBiDifeature_map () const
int IndexFeature (const INT_FEATURE_STRUCT &f) const
int MapFeature (const INT_FEATURE_STRUCT &f) const
int MapIndexFeature (int index_feature) const
INT_FEATURE_STRUCT InverseIndexFeature (int index_feature) const
INT_FEATURE_STRUCT InverseMapFeature (int map_feature) const
void DeleteMapFeature (int map_feature)
bool IsMapFeatureDeleted (int map_feature) const
void Init (const IntFeatureSpace &feature_space)
int OffsetFeature (int index_feature, int dir) const
int FindNZFeatureMapping (SampleIterator *it)
int FinalizeMapping (SampleIterator *it)
void IndexAndSortFeatures (const INT_FEATURE_STRUCT *features, int num_features, GenericVector< int > *sorted_features) const
int MapIndexedFeatures (const GenericVector< int > &index_features, GenericVector< int > *map_features) const
void DebugMapFeatures (const GenericVector< int > &map_features) const

Detailed Description

Definition at line 48 of file intfeaturemap.h.


Constructor & Destructor Documentation

tesseract::IntFeatureMap::IntFeatureMap ( )

Definition at line 35 of file intfeaturemap.cpp.

: mapping_changed_(true), compact_size_(0) {
for (int dir = 0; dir < kNumOffsetMaps; ++dir) {
offset_plus_[dir] = NULL;
offset_minus_[dir] = NULL;
}
}
tesseract::IntFeatureMap::~IntFeatureMap ( )

Definition at line 43 of file intfeaturemap.cpp.

{
Clear();
}

Member Function Documentation

int tesseract::IntFeatureMap::compact_size ( ) const
inline

Definition at line 57 of file intfeaturemap.h.

{
return compact_size_;
}
void tesseract::IntFeatureMap::DebugMapFeatures ( const GenericVector< int > &  map_features) const

Definition at line 173 of file intfeaturemap.cpp.

{
for (int i = 0; i < map_features.size(); ++i) {
f.print();
}
}
void tesseract::IntFeatureMap::DeleteMapFeature ( int  map_feature)

Definition at line 64 of file intfeaturemap.cpp.

{
feature_map_.Merge(-1, map_feature);
mapping_changed_ = true;
}
const IndexMapBiDi& tesseract::IntFeatureMap::feature_map ( ) const
inline

Definition at line 63 of file intfeaturemap.h.

{
return feature_map_;
}
const IntFeatureSpace& tesseract::IntFeatureMap::feature_space ( ) const
inline

Definition at line 60 of file intfeaturemap.h.

{
return feature_space_;
}
int tesseract::IntFeatureMap::FinalizeMapping ( SampleIterator it)

Definition at line 160 of file intfeaturemap.cpp.

{
if (mapping_changed_) {
feature_map_.CompleteMerges();
compact_size_ = feature_map_.CompactSize();
#ifdef EXPERIMENT_ON
it->MapSampleFeatures(*this);
#endif
mapping_changed_ = false;
}
return compact_size_;
}
int tesseract::IntFeatureMap::FindNZFeatureMapping ( SampleIterator it)
void tesseract::IntFeatureMap::IndexAndSortFeatures ( const INT_FEATURE_STRUCT features,
int  num_features,
GenericVector< int > *  sorted_features 
) const
inline

Definition at line 104 of file intfeaturemap.h.

{
feature_space_.IndexAndSortFeatures(features, num_features,
sorted_features);
}
int tesseract::IntFeatureMap::IndexFeature ( const INT_FEATURE_STRUCT f) const

Definition at line 48 of file intfeaturemap.cpp.

{
return feature_space_.Index(f);
}
void tesseract::IntFeatureMap::Init ( const IntFeatureSpace feature_space)

Definition at line 74 of file intfeaturemap.cpp.

{
feature_space_ = feature_space;
mapping_changed_ = false;
int sparse_size = feature_space_.Size();
feature_map_.Init(sparse_size, true);
feature_map_.Setup();
compact_size_ = feature_map_.CompactSize();
// Initialize look-up tables if needed.
if (dir.x() == 0.0f && dir.y() == 0.0f)
// Compute look-up tables to generate offset features.
for (int dir = 0; dir < kNumOffsetMaps; ++dir) {
delete [] offset_plus_[dir];
delete [] offset_minus_[dir];
offset_plus_[dir] = new int[sparse_size];
offset_minus_[dir] = new int[sparse_size];
}
for (int dir = 1; dir <= kNumOffsetMaps; ++dir) {
for (int i = 0; i < sparse_size; ++i) {
int offset_index = ComputeOffsetFeature(i, dir);
offset_plus_[dir - 1][i] = offset_index;
offset_index = ComputeOffsetFeature(i, -dir);
offset_minus_[dir - 1][i] = offset_index;
}
}
}
INT_FEATURE_STRUCT tesseract::IntFeatureMap::InverseIndexFeature ( int  index_feature) const

Definition at line 57 of file intfeaturemap.cpp.

{
return feature_space_.PositionFromIndex(index_feature);
}
INT_FEATURE_STRUCT tesseract::IntFeatureMap::InverseMapFeature ( int  map_feature) const

Definition at line 60 of file intfeaturemap.cpp.

{
int index = feature_map_.CompactToSparse(map_feature);
return feature_space_.PositionFromIndex(index);
}
bool tesseract::IntFeatureMap::IsMapFeatureDeleted ( int  map_feature) const

Definition at line 68 of file intfeaturemap.cpp.

{
return feature_map_.IsCompactDeleted(map_feature);
}
int tesseract::IntFeatureMap::MapFeature ( const INT_FEATURE_STRUCT f) const

Definition at line 51 of file intfeaturemap.cpp.

{
return feature_map_.SparseToCompact(feature_space_.Index(f));
}
int tesseract::IntFeatureMap::MapIndexedFeatures ( const GenericVector< int > &  index_features,
GenericVector< int > *  map_features 
) const
inline

Definition at line 115 of file intfeaturemap.h.

{
return feature_map_.MapFeatures(index_features, map_features);
}
int tesseract::IntFeatureMap::MapIndexFeature ( int  index_feature) const

Definition at line 54 of file intfeaturemap.cpp.

{
return feature_map_.SparseToCompact(index_feature);
}
int tesseract::IntFeatureMap::OffsetFeature ( int  index_feature,
int  dir 
) const

Definition at line 114 of file intfeaturemap.cpp.

{
if (dir > 0 && dir <= kNumOffsetMaps)
return offset_plus_[dir - 1][index_feature];
else if (dir < 0 && -dir <= kNumOffsetMaps)
return offset_minus_[-dir - 1][index_feature];
else if (dir == 0)
return index_feature;
else
return -1;
}
int tesseract::IntFeatureMap::sparse_size ( ) const
inline

Definition at line 54 of file intfeaturemap.h.

{
return feature_space_.Size();
}

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