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transforms.h File Reference

Definitions of Fourier, Hadamard, Walsh-Hadamard, and 2D Hadamard transforms. More...

#include <itpp/base/vec.h>
#include <itpp/base/mat.h>
#include <itpp/base/matfunc.h>

Go to the source code of this file.

Namespaces

namespace  itpp

Functions

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


Detailed Description

Definitions of Fourier, Hadamard, Walsh-Hadamard, and 2D Hadamard transforms.

Author:
Tony Ottosson, Thomas Eriksson, Simon Wood and Adam Piatyszek
Date
2007-05-15 21:42:31 +0200 (Tue, 15 May 2007)
Revision
1026

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IT++ - C++ library of mathematical, signal processing, speech processing, and communications classes and functions

Copyright (C) 1995-2007 (see AUTHORS file for a list of contributors)

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

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Definition in file transforms.h.


Function Documentation

template<class T>
void bitrv Vec< T > &  out  ) 
 

Bit reverse.

Definition at line 203 of file transforms.h.

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