From the results in Table 1, the quantization error was the
smallest in Fig. 3(a), the biggest in Fig. 3(b) and middle in Fig. 3(c)
and (d). Like the quantization error, the inner class distance has the
same distribution. It was the smallest in Fig. 3(a), the biggest in Fig.
3(b) and middle in Fig. 3(c) and (d). From the between-class
distance point of view, it has the biggest in Fig. 3(a). The main
reason is that we consider the neighborhood pixels which can
obviously reduce the number of cluster centers and further increase
the between-class distance in some degree.
B. MODIS REMOTE SENSING IMAGE EXPERIMENT
MODIS remote sensor is carried in the TERRAAQUA and the
average height of MODIS sensor orbit is 705 km, which belongs to