Transforms

The inversion of Laplace transforms is performed using two methods: (1) the Zakian method and (2) the Fourier series approximation. Results are in agreement with analytical solutions. The Zakian method presents problems for transcendental functions. The Fourier series gives better results when... Platforms: Matlab

Inversion of Laplace transforms is a very important procedure used in solution of complex linear systems.The function f(t)=INVLAP(F(s)) offers a simple, effective and reasonably accurate way to achieve the result. It is based on the paper:J. Valsa and L. Brancik: Approximate Formulae for... Platforms: Matlab

Fits hidden Markov models to contourlet transform and use these for classification of imagesCode used for the article "Authentication of paintings using hidden Markov modelling of contourlet transforms", where we develop a method for classification of paintings from digital reproductions. Platforms: Matlab

Shelljam is a cross-platform console application that transforms keystrokes into MIDI events and hence, lets you use your computer keyboard like any other MIDI input device. Also, the instrument you use will color the music you make. If you like computers, you might just want to use what you... Platforms: *nix

PDL::Transform is a Perl module that coordinate transforms, image warping, and N-D functions. SYNOPSIS use PDL::Transform; my $t = new PDL::Transform:: ( ) $out = $t->apply($in) # Apply transform to some N-vectors (Transform method) $out = $in->apply($t) # Apply transform to some... Platforms: *nix

The Epeios XML preprocessor (expp in short) is a tool which transforms an XML file to another XML file, by using tags owned by a given namespace (xpp by default, but you can change it). This tags allow to handle macros, to affect value to variables ant to test their values, to include files, ...... Platforms: *nix

Dv2vloopback is a program that transforms your camcorder into a v4l virtual device in order to be able to use it with applications that use a webcam such as Flash, AMSN, and Kopete. The project works by using vloopback, GD, and dvgrab.. Get dv2vloopback at SourceForge.net. Fast, secure and free... Platforms: *nix

This program transforms the images and the sounds using single BIG Fourier Transforms (or DCT/DST,etc.). It produces very interesting and strange effects and allows you to transform sounds to images and vice-versa. To see what it does see the examples . Platforms: *nix

cvsstat is a Perl program which transforms the cvs status output to an ASCII table sorted after the status of files. If you have used CVS, then you know that it is hard to get a good overview the CVS-status of the files in you directories. Any new files? Any files changes? Any files which other... Platforms: *nix

SnapLogic project is an Open Source solution that transforms data into services using the standard technologies of the Web. The problem of getting data from one place to another is universal. The Internet has solved that problem for documents, but integrating the underlying data remains a... Platforms: *nix

PyChoReLib is a Python library which transforms lists of notenames to a chordname. The system uses built-in music theory knowledge to make it easy and quick to add support for new chord types PyChoReLib, in the current form, accepts a list of note names, and transforms those to a chord. e.g.... Platforms: *nix

Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. Maxima yields high... Platforms: Mac, Linux

Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. Maxima yields high... Platforms: Windows

The program transforms an input image using the differential box counting algorithm to a fractal dimension (FD) image, i.e. each pixel has its own FD. Then the user can select any region of interest in the generated FD image to estimate the corresponding mean, standard deviation and lacunarity. Platforms: Matlab

The fft of 3 functions are compared with their analytic transforms. The method proposal produce results that are super imposable with the theoretical predictions.Odd and even number of points are considered.(The algorithm works correctly in both cases). Platforms: Matlab

Function that transforms 1 or 2D data to match a specified linear dynamic range.NORMALIZE_IMAGE(I,R) applies a linear transformation to the dynamic range of I, mapping pixel intensities to new values over the range R. Platforms: Matlab

Function that transforms a non positive definite symmetric matrix to a positive definite.Function that transforms a non positive definite symmetric matrix to positive definite symmetric matrix -i.e. invertible-.One particular case could be the inversion of a covariance matrix. The... Platforms: Matlab

The advantage of the function compared to hgtransform objects is that it operates directly on the XData,YData and ZData of the object which allows ButtonDownFcn callbacks to execute even when the object was moved. Moreover the applied transforms can be undone or redone stepwise as well as objects... Platforms: Matlab

This is a very fast and efficient script for nodal-to/from-spectral transforms using chebyshev polynomials on the unit square domain. This version does not require 2^n truncation, but does require the same truncation in both dimension. Users are encouraged to improve and redistribute this script. Platforms: Matlab

The Library is for Finite Transforms such as the Number Theoretic Transform (NTT) and others. Current modules include NTTW for NTTs with high resolution (microsecond) timing, basic array and imaging. The transforms are optimised for performance. Platforms: Mac