Top "Noise" questions

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

how to remove salt and pepper noise from images using python?

I have tried to implement the following algorithm but the resulting image looks the same. Step 1: Read Noisy Image. Step 2: …

python image image-processing noise noise-reduction
Adding poisson noise to an image

I have some images that I need to add incremental amounts of Poisson noise to in order to more thoroughly …

python image noise poisson
How to Calibrate Android Accelerometer & Reduce Noise, Eliminate Gravity

So, I've been struggling with this problem for some time, and haven't had any luck tapping the wisdom of the …

android filter accelerometer noise calibration
Adding noise to numpy array

So say I'm trying to create a 100-sample dataset that follows a certain line, maybe 2x+2. And I want the …

python arrays numpy vector noise
How reduce background noise while recording in iphone?

I am planning to compare two audio files. i have recorded two voices and compared them using cross correlation. since …

iphone noise voice-recording
How to generate noise in frequency range with numpy?

I have a main signal, for example sinus with period of 200 samples. I would like to add a noise to …

python numpy signal-processing noise
How to add Gaussian noise to an image?

How to add a certain amount of Gaussian noise to the image in python? Do I need to convert somehow …

python image image-processing gaussian noise
How can I measure image noise

I've found a few ways of reducing noise from image, but my task is to measure it. So I am …

algorithm image noise
In need of Fractional Brownian Noise (FBM) vs Perlin Noise clarification

I'm researching the various types of noise for terrain generation and I'm a little confused regarding when noise becomes perlin …

graphics noise terrain fractals perlin-noise
Using Perlin noise to generate a 2d tile map

I looked all over the internet and researched Perlin noise, however, I am still confused. I am using java and …

java libgdx noise perlin-noise procedural