Top "Noise" questions

Noise is random variation in a signal, for example errors in measurements of the position of a moving object.

Random / noise functions for GLSL

As the GPU driver vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss …

random shader glsl noise perlin-noise
Determine frequency from signal data in MATLAB

I have data from a sensor and I need to find the frequency of it. It looks like fft() seems …

matlab signal-processing frequency noise
Play simple beep with python without external library

Using only the modules that come with a standard python 2.6 installation, would it be possible to play a simple beeping …

python playback noise
Reducing noise on Data

I have 2 lists with data points in them. x = ["bunch of data points"] y = ["bunch of data points"] I've generated …

python smoothing noise kalman-filter
Proper way to add noise to signal

In many areas I have found that while adding noise, we mention some specification like zero mean and variance. I …

matlab signal-processing noise
Defining a white noise process in Python

I need to draw samples from a white noise process in order to implement a particular integral numerically. How do …

python numpy scipy probability noise
Any Simplex Noise Tutorials or Resources?

I want to create a terrain-like 3D noise generator and after doing some research I came to the conclusion that …

noise perlin-noise simplex-noise noise-generator
Fastest Perlin-Like 3D noise algorithm?

It's been well over 20 years since Ken Perlin first invented his noise. Has anybody managed to make a faster kind …

3d noise perlin-noise procedural
Removing pattern and noise in an image using FFT in matlab

I am using the clown.jpg image to be able to get rid of the obvious pattern/noise it has. …

matlab design-patterns image-processing fft noise
Adding gaussian noise to a dataset of floating points and save it (python)

I'm working on classification problem where i need to add different levels of gaussian noise to my dataset and do …

python-3.x machine-learning classification noise