transforms.cpp File Reference

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

#include <itpp/config.h>
#include <itpp/base/transforms.h>
#include <itpp/base/elmatfunc.h>

Go to the source code of this file.

Namespaces
namespace	itpp
Functions
void	fft (const cvec &in, cvec &out)
	Fast Fourier Transform.
void	ifft (const cvec &in, cvec &out)
	Inverse Fast Fourier Transform.
void	fft_real (const vec &in, cvec &out)
	Real Fast Fourier Transform.
void	ifft_real (const cvec &in, vec &out)
	Inverse Real Fast Fourier Transform. Assumes even size.
void	dct (const vec &in, vec &out)
	Discrete Cosine Transform (DCT).
void	idct (const vec &in, vec &out)
	Inverse Discrete Cosine Transform (IDCT).
cvec	fft (const cvec &in)
	Fast Fourier Transform.
cvec	fft (const cvec &in, const int N)
	Fast Fourier Transform, with zero-padding up to size N.
cvec	ifft (const cvec &in)
	Inverse Fast Fourier Transform.
cvec	ifft (const cvec &in, const int N)
	Inverse Fast Fourier Transform, with zero-padding up to size N.
cvec	fft_real (const vec &in)
	Real Fast Fourier Transform.
cvec	fft_real (const vec &in, const int N)
	Real Fast Fourier Transform, with zero-padding up to size N.
vec	ifft_real (const cvec &in)
	Inverse Real Fast Fourier Transform. Assumes even size.
vec	ifft_real (const cvec &in, const int N)
	Inverse Real Fast Fourier Transform, with zero-padding up to size N.
vec	dct (const vec &in)
	Discrete Cosine Transform (DCT).
vec	idct (const vec &in)
	Inverse Discrete Cosine Transform (IDCT).
template vec	dht (const vec &v)
	Template instantiation of dht.
template cvec	dht (const cvec &v)
	Template instantiation of dht.
template void	dht (const vec &vin, vec &vout)
	Template instantiation of dht.
template void	dht (const cvec &vin, cvec &vout)
	Template instantiation of dht.
template void	self_dht (vec &v)
	Template instantiation of self_dht.
template void	self_dht (cvec &v)
	Template instantiation of self_dht.
template vec	dwht (const vec &v)
	Template instantiation of dwht.
template cvec	dwht (const cvec &v)
	Template instantiation of dwht.
template void	dwht (const vec &vin, vec &vout)
	Template instantiation of dwht.
template void	dwht (const cvec &vin, cvec &vout)
	Template instantiation of dwht.
template void	self_dwht (vec &v)
	Template instantiation of self_dwht.
template void	self_dwht (cvec &v)
	Template instantiation of self_dwht.
template mat	dht2 (const mat &m)
	Template instantiation of dht2.
template cmat	dht2 (const cmat &m)
	Template instantiation of dht2.
template mat	dwht2 (const mat &m)
	Template instantiation of dht2.
template cmat	dwht2 (const cmat &m)
	Template instantiation of dht2.

---

Detailed Description

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

Author:

Tony Ottosson, Thomas Eriksson, Simon Wood and Adam Piatyszek

Date

2007-06-11 13:58:31 +0200 (Mon, 11 Jun 2007)

Revision

1060

-------------------------------------------------------------------------

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

-------------------------------------------------------------------------

Definition in file transforms.cpp.

---

Function Documentation

template vec itpp::dht (  const vec &  v  )

Template instantiation of dht.

template cvec itpp::dht (  const cvec &  v  )

Template instantiation of dht.

template void itpp::dht (  const vec &  vin, vec &  vout )

Template instantiation of dht.

template void itpp::dht (  const cvec &  vin, cvec &  vout )

Template instantiation of dht.

template void itpp::self_dht (  vec &  v  )

Template instantiation of self_dht.

template void itpp::self_dht (  cvec &  v  )

Template instantiation of self_dht.

template vec itpp::dwht (  const vec &  v  )

Template instantiation of dwht.

template cvec itpp::dwht (  const cvec &  v  )

Template instantiation of dwht.

template void itpp::dwht (  const vec &  vin, vec &  vout )

Template instantiation of dwht.

template void itpp::dwht (  const cvec &  vin, cvec &  vout )

Template instantiation of dwht.

template void itpp::self_dwht (  vec &  v  )

Template instantiation of self_dwht.

template void itpp::self_dwht (  cvec &  v  )

Template instantiation of self_dwht.

template mat itpp::dht2 (  const mat &  m  )

Template instantiation of dht2.

template cmat itpp::dht2 (  const cmat &  m  )

Template instantiation of dht2.

template mat itpp::dwht2 (  const mat &  m  )

Template instantiation of dht2.

template cmat itpp::dwht2 (  const cmat &  m  )

Template instantiation of dht2.

Generated on Fri Jan 11 08:51:39 2008 for IT++ by Doxygen 1.3.9.1