Comparison of classification maps obtained with four of the classifiers. Clockwise from top left: ANN class map from 194-band data, MED map from 194-band data, MLH map from 30-band data, and SAM map from 194-band data. The class labels are resolved in Table 1, and spectral statistics are shown in Figures 4 and 5, for the ANN and MLH cases. The label ‘bg’ stands for unclassified pixels (background color). The ANN and SAM class maps contain a considerable number of unclassified pixels, while the other class maps do not.