Table 2.

Threshold values generated by the Otsu method versus threshold values generated by the proposed approach

ID	Image	Otsu methodthreshold value	Proposed approach threshold value	NOT
16406488		56, 173	56, 173	24
		45, 110, 187	43, 109, 186	24
		39, 100, 150, 213	39, 100, 150, 213	16
		33, 85, 116, 156, 216	32, 83, 115, 156, 215	11
16406490		45, 159	45, 159	25
		26, 88, 181	26, 88, 180	14
		25, 84, 146, 211	24, 69, 113, 187	10
		23, 66, 106, 157, 217	23, 66, 106, 157, 217	5
16406498		32, 110	32, 110	25
		29, 96, 165	29, 96, 165	18
		28, 77, 124, 175	26, 76, 124, 175	8
		25, 75, 121, 163, 209	25, 75, 121, 163, 209	13
16406502		36, 143	36, 142	25
		24, 81, 170	24, 81, 170	13
		24, 76, 138, 206	23, 76, 138, 205	17
		22, 62, 100, 150, 212	21, 62, 100, 150, 211	5
16406503		50, 154	50, 154	25
		28, 92, 175	28, 92, 175	22
		28, 88, 153, 214	27, 88, 152, 212	17
		24, 68, 109, 160, 216	23, 68, 109, 160, 216	6
16406513		61, 172	60, 171	25
		31, 98, 185	31, 98, 185	24
		29, 90, 145, 208	29, 90, 145, 207	8
		24, 69, 108, 151, 211	23, 68, 108, 151, 210	13
16407187		61, 170	61, 170	25
		31, 97, 181	31, 97, 180	20
		30, 92, 143, 201	28, 81, 124, 187	22
		27, 75, 115, 155, 210	26, 75, 115, 155, 210	13
16424071		63, 177	63, 177	25
		22, 86, 182	22, 86, 181	24
		19, 63, 110, 185	19, 63, 110, 184	12
		19, 61, 107, 158, 216	19, 61, 107, 157, 215	7
16424081		58, 169	58, 169	25
		20, 78, 176	20, 78, 176	25
		17, 61, 108, 178	17, 58, 108, 178	17
		15, 42, 78, 119, 189	14, 41, 77, 118, 188	14
16424106		29, 104	29, 104	25
		26, 86, 164	26, 85, 163	18
		23, 67, 113, 177	23, 67, 113, 177	21
		20, 55, 92, 137, 195	20, 55, 92, 137, 195	19