Discrete Wavelet Transform Tutorial

computes the sequency-ordered discrete Hadamard transform Platforms: Matlab

computes the naturally-ordered discrete Hadamard transform Platforms: Matlab

This article consists of a brief discussion of the energy density over time or frequency that is obtained with the wavelet transform. Also an efficient algorithm is suggested to calculate the continuous transform with the Morlet wavelet. The energy values of the Wavelet transform are compared... Platforms: Matlab

This collection of files is an extension of the wavelet software package originally written by Torrence and Compo (http://paos.colorado.edu/research/wavelets/software.html)The main functions are:1. contwt.m: (continuous wavelet transform). This is essentially Torrence and Compo's wavelet.m with a... Platforms: Matlab

Image compression using wavelet transform *wavelet transform give better information about non-stationary signals in time domain Platforms: Matlab

This transformation is non-redundant, approximately shift-invariant and produces oriented filters in 2D and 3D. There is a m-file called 'example.m' which shows how one can use this package.For more information see the following paper:Hosseini, Vafadust : "Almost Perfect Reconstruction Filter... Platforms: Matlab

The library includes compiled FIR filters, redundant and non redundant wavelet transform with dynamically sized channels, with applications to denoising and differentiation. Platforms: Matlab

MGWT: Identification of protein coding regions using the ModifiedGabor-wavelet transform.Sequence of test:F56F11.4.fasta (included into the zip file)http://www.ncbi.nlm.nih.gov/entrez/viewer....de&val=AF099922http://www.vision.ime.usp.br/~jmena/projec...ome_results/F5/References:[1] J. P.... Platforms: Matlab

NIST benchmark for random stream checking. Includes source and object code. Visual C++ 2008 project paramaters included. Implemets the following tests: Approximate Entropy, Block Frequency, Cumulative Sums, Discrete Fourier Transform, Linear Complexity, Longest Run Of Ones, Rank, Overlapping... Platforms: Windows

EDFT (Extended Discrete Fourier Transform) algorithm produces N-point DFT of sequence X where N is greater than the length of input data. Unlike the Fast Fourier Transform (FFT), where unknown readings outside of X are zero-padded, the EDFT algorithm for calculation of the DFT using only... Platforms: Matlab

Y = DCTN(X) returns the discrete cosine transform (DCT) of X.X = IDCTN(Y) returns the inverse discrete cosine transform (IDCT) of Y.Y = DSTN(X) returns the discrete sine transform (DST) of X.X = IDSTN(Y) returns the inverse discrete sine transform (IDST) of Y.X and Y can be N-dimensional.D =... Platforms: Matlab

This function searches the interior of a signal in an attempt to find a segment that may be used in order to make the signal quasi-periodic. This can be used to reduce the influence of end effects on analyses such as the Hilbert Transform, the Wavelet Transform, the Hilbert-Huang Transform and... Platforms: Matlab

Compute the discrete Fourier transform at specified frequencies, not using fft.Why one may need this?(1) MATLAB fft function computes the amplitude of signals only (no phase).(2) Once having the recorded time-series data, one often uses fft to do the spectral analysis. However, the frequency set... Platforms: Matlab

Gwyddion is a modular program for SPM (scanning probe microscopy) data visualization and analysis. Primarily it is intended for analysis of height fields obtained by scanning probe microscopy techniques (AFM, MFM, STM, SNOM/NSOM), however it can be generally used for any other height field and... Platforms: Linux

PGF Console is a tool designed to be used for lossless and lossy compression. PGF is a new image file format that is based on discrete, fast wavelet transform with progressive coding features. Platforms: Windows

Scorched 3D project is a game based loosely (or actually quite heavily now) on the classic DOS game Scorched Earth "The Mother Of All Games". Scorched 3D adds amongst other new features a 3D island environment and LAN and internet play. Scorched 3D is totally free and is available for both... Platforms: *nix

Dirac is a video codec that provides general-purpose video compression and decompression tools comparable with state-of-the-art systems. Dirac video codec is available for distribution under the MPL version 1.1 software license. Dirac is an open source video codec. It uses a traditional... Platforms: *nix

HPC Challenge is a high performance benchmark suite. The HPC Challenge consists of basically 7 benchmarks: 1. HPL - the Linpack TPP benchmark which measures the floating point rate of execution for solving a linear system of equations. 2. DGEMM - measures the floating point rate of execution... Platforms: *nix

NIST benchmark for librandomtest.so checking. Includes source and object code. Eclipse and gcc parameters included. Implemets the following tests: Approximate Entropy, Block Frequency, Cumulative Sums, Discrete Fourier Transform, Linear Complexity, Longest Run Of Ones, Rank, Overlapping Template... Platforms: Linux

Random tests shared library in C. Includes source code and object code. Eclipse and gcc parameters included. Implemets the following tests: Approximate Entropy, Block Frequency, Cumulative Sums, Discrete Fourier Transform, Linear Complexity, Longest Run Of Ones, Rank, Overlapping Template... Platforms: Linux