Research Article

An Improved Multithreshold Segmentation Algorithm Based on Graph Cuts Applicable for Irregular Image

Table 6

Structural Similarity Index (SSIM) of different segmented images using various algorithm.

ImagelevelOur algorithmBAMMSAIBAOTSU

LENA 
  (512×512)
20.560.540.550.540.55
30.740.720.730.720.74
40.810.780.790.780.80
50.900.870.880.870.89
PEPPERS 
  (512×512)
20.630.610.610.620.63
30.780.750.750.770.78
40.850.820.820.830.84
50.940.900.910.920.93
BIRD 
  (256×256)
20.570.560.550.560.57
30.680.660.650.660.68
40.870.840.830.850.86
50.910.880.870.890.90
CAMERA 
  (256×256)
20.710.690.700.690.70
30.810.770.780.770.79
40.940.910.920.910.93
50.970.940.930.940.96
GOLDHILL 
  (256×256)
20.550.540.540.530.55
30.780.760.760.750.77
40.850.830.840.820.84
50.910.880.890.880.90
2407720.790.790.780.780.78
(481×321)30.840.830.830.840.82
40.880.860.860.850.86
50.940.930.930.920.93
8907220.620.620.620.620.62
(321×481)30.760.750.740.750.74
40.820.810.800.810.82
50.880.870.860.870.87
4204920.760.750.760.760.76
(481×321)30.830.820.810.820.83
40.920.920.910.920.92
50.970.950.960.960.97
8601620.540.540.540.540.54
(481×321)30.660.650.640.640.66
40.730.730.710.710.73
50.920.900.910.900.89
5408220.320.310.310.310.30
(321×481)30.380.370.370.370.36
40.600.590.590.580.56
50.920.910.910.910.90
2107720.480.480.480.470.47
(481×321)30.730.720.710.710.71
40.890.880.880.870.87
50.930.920.920.910.91
16006820.610.600.590.590.60
(481×321)30.670.650.640.640.64
40.720.690.690.690.68
50.770.740.730.730.73
3707320.330.320.320.310.32
(481×321)30.660.650.640.640.65
40.820.800.800.800.81
50.890.870.870.870.88
6605320.470.440.440.440.45
(481×321)30.790.770.770.770.78
40.840.820.820.810.83
50.880.860.860.850.87
30407420.550.540.550.540.54
(321×481)30.690.650.660.650.66
40.780.750.770.760.77
50.860.820.830.820.82