LBG Algorithm used for classification

Dear all friends, i'm a new one in pattern classification , i need to know if this [url]http://www.mathworks.com/matlabcentral/fileexchange/10457-image-compression-using-lbg-algorithm[/url] is the right code for the pattern classification based on LBG or it's only for image compressing. because i read this

Description Linde, Buzo, and Gray (LBG) proposed a VQ design algorithm based on a training sequence. The use of a training sequence bypasses the need for multi-dimensional integration. The LBG algorithm is of iterative type and in each iteration a large set of vectors, generally referred to as training set, is needed to be processed. Usually, vectors sampled from a group of typical signals to be encoded altogether construct a training set T={x1,x 2,?.x M} ,where xi represents a sampled training vector and M represents the size of training set which is far greater than the codebook size N.

thank you so much :) :)