Hi--just started using the FX module to pick out certain features in an archaeological landscape (namely settlement mounds). I'm not trying to break down the entire landscape into land types--just pick out these specific features. I've defined two types of settlement mounds. However, when I run the classification, it classifies the entire image based on my 2 categories, rather than just identifying matching features. I'm trying both the K algorithm and the Support Vector Means (SVM) algorithm--but isn't there some sort of threshold I can set for membership? Thanks! Steve