Wavelet Computations.

WAVELET is a MATLAB library which contains some utilities for computations involving wavelets.


The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.


WAVELET is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs:

HAAR, a MATLAB library which computes the Haar transform of data.

SFTPACK, a MATLAB library which implements the "slow" Fourier transform, intended as a teaching tool and comparison with the fast Fourier transform.

SINE_TRANSFORM, a MATLAB library which demonstrates some simple properties of the discrete sine transform.

WALSH, a MATLAB library which implements versions of the Walsh and Haar transforms.


  1. Gilbert Strang, Truong Nguyen,
    Wavelets and Filter Banks,
    Wellesley-Cambridge Press, 1997,
    ISBN: 0-9614088-7-1,
    LC: TK7872.F5S79 / QA403.3.S87.

Source Code:

Examples and Tests:

Functions such as DAUB4_SCALE_PLOT can plot a scaling function approximated using a given recursion level N. Typically a value of N = 4 or 5 is enough.

You can go up one level to the MATLAB source codes.

Last revised on 01 August 2011.