A Clustering Method for Data in Cylindrical Coordinates

Table 4

Comparison of performances of the four methods using the segmentation benchmark dataset.

Number	cyk-means	Fixed cyk-means	-means (HSV)	-means (RGB)
12003 ()	0.6397	0.3744	0.3695	0.2277
69020 ()	0.1611	0.5247	0.07680	0.1406
80099 ()	0.9205	0.7960	0.6544	0.04890
103029 ()	0.4697	0.5934	0.1794	0.09143
106047 ()	0.3210	0.2988	0.04155	0.02332
310007 ()	0.1548	0.3338	0.3075	0.3396
353013 ()	0.6125	0.5993	0.5020	0.4683

ARI are the mean of 200 runs with random initial values. The best estimations are bold. “Number” indicates the number of the image. “-means (HSV)” and “-means (RGB)” indicate that we cluster HSV and RGB color images by the -means, respectively.