Top "Noise" questions

OpenCV how to smooth contour, reducing noise

I extracted the contours of an image, that you can see here: However, it has some noise. How can I …

python opencv contour noise smooth

R: How to generate a noisy sine function

I am still pretty new to the whole R-thing. I have the following aim; I have a sine function that …

r noise trigonometry stochastic

Software sound cancelling (destructive interference) tools on Linux?

I am looking at writing some software that will allow me to listen to music whilst talking with someone on …

linux audio noise

Using PyKalman on Raw Acceleration Data to Calculate Position

This is my first question on Stackoverflow, so I apologize if I word it poorly. I am writing code to …

python noise kalman-filter pykalman

Finding an approximate local maximas with noisy data in Matlab

The matlab FAQ describes a one-line method for finding the local maximas: index = find( diff( sign( diff([0; x(:); 0]) ) ) < 0 ); But …

matlab maximize noise

Reduce the volume of a Wav audio file using C

I am writing a C program for editing a Wav audio file. I have loaded all file datas in an …

c audio wav volume noise

Why does simplex noise seem to have *more* artifacts than classic Perlin noise?

I read Stefan Gustavson's excellent paper on simplex noise, in which I was promised that: Simplex noise has no noticeable …

algorithm noise perlin-noise procedural-generation simplex-noise