estimatezigma2.m

一个在matlab环境下编写的采用expectation maximization方法计算高斯混合模型的程序。

function zigma2 = estimateZIGMA2(pxy, x, intensity, mu)
zigma2 = sum( pxy(x,:).*(intensity-mu(x)).*(intensity-mu(x))) / sum( pxy(x,:));