Fftw

PDL::FFTW is a PDL interface to the Fastest Fourier Transform in the West v2.x. This is a means to interface PDL with the FFTW library. Its similar to the standard FFT routine but its usually faster and has support for real transforms. It works well for the types of PDLs for which was the...


Platforms: *nix

FFTW++ is a C++ header class for the FFTW Fast Fourier Transform library that automates memory allocation, alignment, planning, and wisdom. In 2D and 3D, implicit dealiasing of convolutions substantially reduces memory usage and computation time.


Platforms: Windows, Mac, BSD, Linux

GWC is an application to do digital audio restoration on wavfile data, i.e. remove hisses and clicks. It features click repair using least squares autoregressive interpolation, and is based on the FFTW library. This is still beta code, so back up your data files first. It is resulting of never...


Platforms: *nix

SWH Plugins are a set of audio plugins for the LADSPA plugin system. You will need libfftw version 2 or 3 installed with 32 bit float support (eg. for FFTW3 use --enabe-float), for FFTW recommend you specify the approriateSIMD isntruction set for your CPU with --enable-sse, --enable-sse2,...


Platforms: *nix

This open source, digitizing software converts an image file showing a graph or map, into numbers. The image file can come from a scanner, digital camera or screenshot. The numbers can be read on the screen, and written or copied to a spreadsheet. The process starts with an image file containing...


Platforms: Windows, Mac, *nix, C/C++, BSD

This mex file implements vectorized FFTs on multiple threads. When a matrix is passed to FFTmt, it is divided in "numCPU" and each fraction of the problem is executed in a separate threadExample: if numCPU = 2 and the matrix has 256x2^14 elements, 128 FFTs are performed in each thread, allowing...


Platforms: Matlab

The tvreg package applies total variation (TV) regularization to perform image denoising, deconvolution, and inpainting. Three different noise models are supported: Gaussian (L2), Laplace (L1), and Poisson. The implementation solves the general TV restoration problem Min TV(u) + d-?Tz d?T¬...


Platforms: Matlab

Learn how to create MEX-functions: programs written in C, C++, or Fortran code that are callable from MATLAB. This article is a guide to getting started and performing practical tasks as well as a reference.Contents:* Introduction* Getting Started* Inputs and Outputs* Creating an Uninitialized...


Platforms: Matlab

Many image processing applications require an extensive usage of FFT2 routine (or, in the most general case, a N-dimensional FFT) of matrices having the same dimensions. In these cases MATLAB FFT2 can result extremely inefficient. In general the execution time can be significantly reduced by...


Platforms: Matlab