Experiments are conducted to evaluate the performance of the
proposed approach using three test images with different format,
Onion, Lena and Lion which are as shown in Figure1.
The proposed algorithm automatically calculates the
number of clusters on the basis of similarity measure i.e. CMC
distance. CMC distance and calculated number of clusters
depends on the number of colors present in the image. As the
number of colors present in the image increases, CMC distance
varies inversely with number of clusters. With the decrease in
the CMC distance, number of clusters increases and with the
increase in the CMC distance, number of clusters decreases
automatically. The proposed algorithm also offers flexibility in
calculating the number of clusters with the CMC distance over
number of runs because each time it runs, ants are initialized
with the different positions, which affect the number of clusters
calculation. The proposed algorithm is implemented in Matlab
7.9.0. In order to evaluate the clustering, MSE is taken as a
measure and Euclidean distance measure is used to calculate
distance between pixels in the cluster.