Implement a Gaussian filter with its variance σ as a user input...

Does anybody have an idea?

Answer 1

[Youssef Khmou]

hi,

try testing your own ideas, as a first test try to set a function

Y=  Gaussian_Filter(X,sigma)

 % So you have input signal X and standard deviation sigma

 %  ADD your own code here :  is it convolution, simple multiplication,....

 %set Gaussian kernel
 %constant=....
 kernel = exp(-constant/2*(sigma^2));

 %Y=conv(X,kernel) as example

Answer 2

[Shashank Prasanna]

Since this is standard functionality, you can expect that someone has already implemented this and shared this in File Exchange:

http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=Gaussian+filter

You can take a look at them to implement you own or use them yourself.