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Fast Hadamard Transforms


Functions

template<class T>
Vec< T > itpp::dht (const Vec< T > &v)
 Fast Hadamard Transform.
template<class T>
void itpp::dht (const Vec< T > &vin, Vec< T > &vout)
 Fast Hadamard Transform.
template<class T>
void itpp::self_dht (Vec< T > &v)
 Fast Hadamard Transform - memory efficient. Stores the result in v.
template<class T>
Vec< T > itpp::dwht (const Vec< T > &v)
 Fast Walsh Hadamard Transform.
template<class T>
void itpp::dwht (const Vec< T > &vin, Vec< T > &vout)
 Fast Walsh Hadamard Transform.
template<class T>
void itpp::self_dwht (Vec< T > &v)
 Fast Walsh Hadamard Transform - memory efficient (result in v).
template<class T>
Mat< T > itpp::dht2 (const Mat< T > &m)
 Fast 2D Hadamard Transform.
template<class T>
Mat< T > itpp::dwht2 (const Mat< T > &m)
 Fast 2D Walsh Hadamard Transform.

Function Documentation

template<class T>
Vec< T > itpp::dht const Vec< T > &  v  ) 
 

Fast Hadamard Transform.

Definition at line 194 of file transforms.h.

References itpp::dht().

template<class T>
void itpp::dht const Vec< T > &  vin,
Vec< T > &  vout
 

Fast Hadamard Transform.

Definition at line 224 of file transforms.h.

References it_assert1, itpp::levels2bits(), and itpp::sqrt().

Referenced by itpp::dht(), and itpp::dwht().

template<class T>
void itpp::self_dht Vec< T > &  v  ) 
 

Fast Hadamard Transform - memory efficient. Stores the result in v.

Definition at line 258 of file transforms.h.

References it_assert1, itpp::levels2bits(), and itpp::sqrt().

Referenced by itpp::dht2(), and itpp::self_dwht().

template<class T>
Vec< T > itpp::dwht const Vec< T > &  v  ) 
 

Fast Walsh Hadamard Transform.

Definition at line 284 of file transforms.h.

References itpp::dwht().

template<class T>
void itpp::dwht const Vec< T > &  vin,
Vec< T > &  vout
 

Fast Walsh Hadamard Transform.

Definition at line 292 of file transforms.h.

References itpp::dht().

Referenced by itpp::dwht().

template<class T>
void itpp::self_dwht Vec< T > &  v  ) 
 

Fast Walsh Hadamard Transform - memory efficient (result in v).

Definition at line 300 of file transforms.h.

References itpp::self_dht().

Referenced by itpp::dwht2().

template<class T>
Mat< T > itpp::dht2 const Mat< T > &  m  ) 
 

Fast 2D Hadamard Transform.

Definition at line 307 of file transforms.h.

References itpp::self_dht().

template<class T>
Mat< T > itpp::dwht2 const Mat< T > &  m  ) 
 

Fast 2D Walsh Hadamard Transform.

Definition at line 327 of file transforms.h.

References itpp::self_dwht().

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