Improved Unsupervised Color Segmentation Using a Modified Color Model and a Bagging Procedure in -Means++ Algorithm

Table 9

Segmentation performance results for image “e” using -means++.

-Means	Cluster 1	Cluster 2	Cluster 3	Cluster 4	Metrics
Ground truth
					Best BAcc.: 0.99148; Mean BAcc: 0.85533; Mean sen.: 0.55745; Mean spe.: 0.92899; Avg. time: 1.89000
n					Best BAcc.: 0.99373; Mean BAcc: 0.94526; Mean sen.: 0.85293; Mean spe.: 0.95088; Avg. time: 0.93870
					Best BAcc.: 0.98950; Mean BAcc: 0.85747; Mean sen.: 0.61804; Mean spe.: 0.92534; Avg. time: 2.7201
					Best BAcc.: 0.99226; Mean BAcc: 0.9104; Mean sen.: 0.78740; Mean spe.: 0.91014; Avg. time: 1.02559
YCrCb					Best BAcc.: 0.99224; Mean BAcc: 0.86661; Mean sen.: 0.67054; Mean spe.: 0.92761; Avg. time: 1.31560
CrCb					Best BAcc.: 0.99250; Mean BAcc: 0.89663; Mean sen.: 0.80508; Mean spe.: 0.92476; Avg. time: 1.0642
					Best BAcc.: 0.99258; Mean BAcc: 0.88251; Mean sen.: 0.64855; Mean spe.: 0.92107; Avg. time: 1.71349
					Best BAcc.: 0.99258; Mean BAcc: 0.92937; Mean sen.: 0.80617; Mean spe.: 0.93624; Avg. time: 1.1482
Orig					Best BAcc.: 0.99241; Mean BAcc: 0.84233; Mean sen.: 0.58515; Mean spe.: 0.87480; Avg. time: 0.58769
Mod					Best BAcc.: 0.99601; Mean BAcc: 0.95133; Mean sen.: 0.78958; Mean spe.: 0.94632; Avg. time (C): 1.3908; Avg. time (B): 2.28200