Thread Subject: Help with Online Gaussian

Hi,

I need some help with solving the online gaussian equations of mean and standard deviation of covariance as shown below into matlab;

1. mu(t) = (1-alpha)*mu(t-1)+alpha*x ......mean
2. sigma^2(t) = (1-alpha)sigma^2(t-1)+alpha*(x-mu(t))^T(x-mu(t)) ......std deviation

x = pixel value
mu = mean

I need to use the above for a Video

Please Help!

Thanks

Any help guys please?