I ve made a "biome gridmap playground" app which help to design biomes for a 2D grid map using simplex noise. The algorithm is roughly this: for each grid map tile, we look at the noises ...

When I add Gaussian noise to an array shouldnt the histogram be Gaussian? Although the noise is random, the distribution should be gaussian right? That is not what I get. A=zeros(10); A=imnoise(A, ...

So apparently if a Mysql table s fulltext index contains a keyword that appears in 50% of the data rows, that keyword will be ignored by the match query So if I have a table with the fulltext index ...

After watching the first game of the FIFA worldcup I was very annoyed by the sound of the Vuvuzelas. A theoretical question came up about filtering that noise out of the sound stream. What algorithms ...

Are there any good resources out there detailing Perlin noise generation? I understand that most languages have noise generating libraries available, but I m interested in creating my own for fun/...

I recently wrote an extremely basic edge detection algorithm that works on an array of chars. The program was meant to detect the edges of blobs of a single particular value on the array and worked by ...

I want to average some .jpg images which are corrupted by zero-mean Gaussian additive noise. After searching around, I figured out to add the image matrices and divide the sum by the number of ...

I want to estimate the noise in an image. Let s assume the model of an Image + White Noise. Now I want to estimate the Noise Variance. My method is to calculate the Local Variance (3*3 up to 21*21 ...