Research Article

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

Table 5

Peak Signal to Noise Ratio (PSNR) of different segmented images using various algorithm.

ImagelevelOur algorithmBAMMSAIBAOTSU

LENA 
  (512×512)
223.0623.0422.9923.0123.02
323.6023.2623.1923.3523.37
423.8923.6523.6123.7223.77
524.1024.0123.9523.9624.11
PEPPERS 
  (512×512)
223.2322.9522.9522.9622.95
323.6723.2323.2223.2423.26
423.9223.6923.6823.7023.74
524.1723.9523.9423.9423.97
BIRD 
  (256×256)
223.1822.9422.9222.9422.93
323.5723.1523.1623.1523.17
423.9223.9623.9223.9423.97
524.1524.3424.3724.3924.43
CAMERA 
  (256×256)
223.0122.9922.9922.9923.00
323.4223.6623.6023.6523.71
423.7523.9323.9323.9423.99
523.9224.1924.1224.1524.18
GOLDHILL 
  (256×256)
222.6623.1323.1223.1423.16
322.8723.3823.3623.3723.41
423.0823.6023.5923.6223.63
523.2024.0324.0224.0424.07
24077223.0123.4023.4023.4223.41
(481×321)323.4423.5023.4723.5423.55
423.7523.5523.5323.5923.60
523.9923.7123.6323.7023.71
89072222.9822.9722.9722.9822.97
(321×481)323.3423.0322.9923.0223.01
423.5723.3323.3023.3223.35
523.6723.4623.4323.4423.50
42049223.9022.9822.9622.9723.00
(481×321)324.3423.1323.1123.1423.16
424.4623.6723.6723.6623.66
524.5824.0924.0924.0924.09
86016222.6823.0323.0223.0323.02
(481×321)323.0223.2423.2323.2423.29
423.3323.3623.3623.4023.41
523.4824.1524.1724.1424.19
54082223.2323.0523.0323.0323.06
(321×481)323.4223.4523.4423.4523.46
423.5824.3324.2324.3224.42
523.6524.7324.6324.6724.73
21077222.7723.4423.4123.4623.46
(481×321)323.0123.7723.7523.7923.83
423.2423.9623.9323.9523.98
523.3224.4924.4424.4824.51
160068222.7422.9222.9122.9122.92
(481×321)323.0823.0523.0422.1323.08
423.3023.6623.6323.6323.67
523.3724.2624.1524.2424.27
37073223.4122.7722.7622.7722.79
(481×321)323.6822.9522.9222.9722.98
423.8223.8423.7923.8523.90
523.8724.1524.0924.2124.38
66053222.6722.7922.7822.7922.79
(481×321)322.9922.9923.0023.0023.02
423.2523.5423.4623.5123.55
523.2823.8223.7823.8023.87
304074222.9723.1523.1423.1623.16
(321×481)323.1523.3423.2823.3623.38
423.3023.8423.8023.8123.86
523.3524.0324.0024.0324.04