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From: Chandrama Dey on 24 Feb 2010 23:50 Hi, I am ph.d final year student on UNSW.I am working with image processing and linear unmixing for flood inundation mapping. what ever coding I have found in file exchange is clustering and PCA based on maximum likelihood method. I have a discriminant function: gi(x)=1/l Si l-(x-mi)' * 1/Si(x-mi) where= Si=sample variance-covariance matrix for class i mi= mean of class i l.l = determinant of the specified matrix the probability of gi(x) that a pixel vector x of p elements(spectral bands) is a member of class i is gven by the multivariate normal desity. I need some valuable suggestions in coding this function to run maximum likelihood classification function for an image (a matrix). |