Top "Dft" questions

DFT matrix in python

What's the easiest way to get the DFT matrix for 2-d DFT in python? I could not find such function …

python numpy scipy fft dft

DFT (discrete fourier transform) with C++ STL

I try to calculate the DFT for this array x_1. It must be dead simple, but my values are way …

c++ stl dft

How to apply Gaussian filter to DFT output in OpenCV

I want to create a Gaussian high-pass filter after determining the correct padding size (e.g., if image width and …

image opencv fft gaussian dft

How to compute Discrete Fourier Transform?

I've been trying to find some places to help me better understand DFT and how to compute it but to …

algorithm fft complex-numbers dft

Implementation of the Discrete Fourier Transform - FFT

I am trying to do a project in sound processing and need to put the frequencies into another domain. Now, …

c++ signal-processing dft

neural networks can't figure out Fourier transforms?

I'm trying to understand a few things about neural networks. First, after looking around on the web, it seems that …

neural-network fft dft

How to calculate frequency of a give wave and time

I have data for Velocity vs time. The time steps are not uniform, but the Velocity data is a wave. …

python numpy scipy fft dft

Calculating the DFT with Jtransform's DoubleFFT_1D() for android

I have been searching everywhere to find a reliable method to calculate the FFT of an audio byte stream received …

android fft dft libgdx

Calculate energy of time domain data

I am new to digital signal processing. I have the following sensor sample data Time(milliseconds) data ------------------ ------------------- 0 0.30865225195884705 60 0.14355185627937317 100 -0.16846869885921478 156 …

matlab signal-processing fft dft

Discrete Fourier transform

I am currently trying to write some fourier transform algorithm. I started with a simple DFT algorithm as described in …

c# math fft dft