classification can reasonably claim that only 50% of the time an area
that was identified as buildings was identified as such in the output
map. As expected earlier, there was significant signature confusion
among buildings, other impervious surfaces, swimming pools, and
unmanaged soil. Trees and shrubs category produced the second
lowest producer's accuracy (62.50%), since there was some significant
signature confusion between trees/shrubs and grass. Almost one third
of the total sample points identified as grass were found to be trees
and shrubs on the ground (23 out of 72). The other low producer's