Table 4 Optimal threshold levels obtained by various optimization algorithms using EC based Kapur method.

test10

2

162,231

162,230

45,118

46,118

45,118

45,118

3

65,145,217

65,145,216

4 5,115,152

44,116,151

45,115,152

46,114,152

4

51,99,140,223

50,100,140,223

45,115,152,205

44,112,152,208

46,115,152,205

47,114,151,205

5

58,114,150,191,240

58,114,151,192,238

43,79,116,152,205

48,81,116,146,198

43,79,116,152,205

46,79,115,148,203

test11

2

166,240

166,239

134,210

134,206

134,210

134,210

3

75,132,217

75,132,218

52,127,206

59,125,210

52,127,206

51,127,206

4

52,127,192,233

52,127,192,234

37,82,128,206

38,84,126,212

37,82,128,206

37,83,127,206

5

67,126,164,211,247

68,126,164,211,247

37,82,127,166,212

38,80,121,164,204

37,80,127,166,211

39,81,125,164,210

test2

2

90,215

90,214

95,196

94,195

95,196

95,196

3

95,149,233

95,149,232

95,144,196

95,152,195

95,144,196

95,149,196

4

93,150,201,241

93,152,201,240

53,95,144,196

47,94,154,196

53,95,144,196

52,95,135,197

5

35,70,150,198,234

35,71,152,200,239

53,95,144,196,239

43,94,126,156,197

54,92,143,196,239

53,91,129,160,199

test3

2

96,202

96,201

95,197

96,196

95,197

94,197

3

92,162,235

93,162,134

95,154,196

93,148,199

95,153,197

95,153,196

4

89,146,198,240

89,147,199,241

61,95,154,196

54,93,156,196

60,95,150,197

46,96,155,196

5

52,117,161,199,238

52,117,161,201,241

52,95 153 196 241

39,94,130,156,196

44,96,129,158,197

60,92,125,159,200

test30

2

181,237

180,237

42,133

43,132

42,133

42,133

3

54,145,225

54,145,225

42,133,197

42,131,202

42,133,197

42,133,198

4

73,136,181,240

73,136,180,239

42,89,136,198

44,92,135,191

42,89,136,197

40,89,136,201

5

54,109,157,199,233

54,109,157,199,232

40,85,128,156,202

44,89,118,153,199

41,85,128,156,202

40,80,124,156,208

test31

2

133,234

133,230

134,195

131,195

134,195

134,195

3

125,204,244

125,205,242

59,95,195

30,136,195

59,95,195

30,141,195

4

34,118,175,238

35,118,176,239

59,95,147,195

57,95,154,202

59,95,147,195

61,92,146,195

5

108,142,195,225,251

109,142,198,220,248

29,59,95,147,195

57,93,133,155,195

29,59,95,147,195

32,62,93,139,195

test4

2

96,206

96,205

96,196

96,196

96,196

96,196

3

88,173,232

89,172,230

95,148,196

95,143,199

95,148,196

95,147,196

4

87,155,205,241

88,154,204,242

61,95,148,196

64,95,137,196

61,95,148,196

60,93,150,195

5

34,95,160,196,235

35,96,161,195,229

31,61,95,148,196

27,63,94,161,201

30,61,95,148,196

64,95,131,158,199

test5

2

145,236

146,235

95,196

95,195

95,196

95,196

3

73,132,171

74,132,172

58,94,196

61,91,196

58,94,196

57,94,198

4

75,134,196,241

75,134,196,239

58,94,146,196

59,94,136,197

58,94,146,196

57,94,137,197

5

71,121,146,170,208

71,123,145,172,212

58,94,146,196,240

62,93,118,159,203

58,94,125,159,196

56,90,128,159,195