An approach to clustering a set of images based on similarity measures
employs a fuzzy clustering paradigm in which each image is represented by
a node in a graph. The graph is ultimately partitioned into subgraphs,
each of which represent true clusters among which the various images are
distributed. The partitioning is performed in a series of stages by
identifying one true cluster at each stage, and removing the nodes
belonging to each identified true cluster from further consideration so
that the remaining, unclustered nodes may then be grouped. At the
beginning of each such stage, the nodes that remain to be clustered are
treated as all belonging to a single candidate cluster. Nodes are removed
from this single candidate cluster in accordance with similarity and
connectivity criteria, to arrive at a true cluster. The member nodes of
this true cluster are then removed from further consideration, prior to
the next stage in the process.