The Scientific World Journal / 2014 / Article / Tab 4

Research Article

Improved Bat Algorithm Applied to Multilevel Image Thresholding

Table 4

Comparison of the mean values and standard deviations obtained for the PSO, DE, CS, FA, BA, and IBA based on Otsu’s criterion for six test images over 50 runs.

Alg. Barbara Living room Boats Goldhill LakeAerial
Mean values St. dev. Mean values St. dev. Mean values St. dev. Mean values St. dev. Mean values St. dev. Mean valuesSt. dev.

PSO 2 2608.610778507 1627.909172752 1863.346730649 2069.510202452 3974.738214185 1808.171050536
3 2785.163280467 1760.103018395 1994.536306242 2220.372641501 4112.631097687 1905.410606582
4 2856.260804034 1828.864376614 2059.866220175 2295.380095430 4180.883976390 1955.085619462
5 2890.975549258 1871.984827146 2092.771150715 2331.156479206 4216.942888298 1979.170306260

DE 2 2608.610778507 1627.909172752 1863.346730649 2069.510202452 3974.738214185 1808.171050536
3 2785.162093432 1760.103018395 1994.535269293 2220.372641501 4112.631097687 1905.410606582
4 2856.261305066 1828.860328016 2059.865271461 2295.380095430 4180.883976390 1955.085619462
5 2890.971346990 1871.976701063 2092.766907541 2331.156479206 4216.942888298 1979.170306260

CS 2 2608.610778507 1627.909172752 1863.346730649 2069.510202452 3974.738214185 1808.171050536
3 2785.163280467 1760.103018395 1994.536306242 2220.372641501 4112.631097687 1905.410606582
4 2856.261511717 1828.864376614 2059.866280428 2295.380469158 4180.886161109 1957.017965982
5 2890.976540127 1871.990230213 2092.775817560 2331.155240485 4216.943583790 1980.651043072

FA 2 2608.610778507 1627.909172752 1863.346730649 2069.510202452 3974.738214185 1808.171050536
3 2785.163280467 1760.103018395 1994.536306242 2220.372641501 4112.631097687 1905.410606582
4 2856.262131671 1828.864376614 2059.866280428 2295.380469158 4180.886161109 1957.017965982
5 2890.976609405 1871.990616316 2092.773515829 2331.156597921 4216.943583790 1980.656737348

BA 2 2608.610778507 1627.909172752 1863.346730649 2069.510202452 3974.738214185 1808.171050536
3 2785.163280467 1760.103018395 1994.536306242 2220.372641501 4112.631097687 1905.410606582
4 2856.262131671 1828.864376614 2059.866280428 2295.380469158 4180.886161109 1957.017965982
5 2890.976609405 1871.990616316 2092.772750357 2331.156597921 4216.943583790 1979.513584665

IBA 2 2608.610778507 1627.909172752 1863.346730649 2069.510202452 3974.738214185 1808.171050536
3 2785.163280467 1760.103018395 1994.536306242 2220.372641501 4112.631097687 1905.410606582
4 2856.262131671 1828.864376614 2059.866280428 2295.380469158 4180.886161109 1957.017965982
5 2890.976609405 1871.990616316 2092.775965336 2331.156597921 4216.943583790 1980.656737348

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