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Table 4 Comparisons among four methods in terms of SSIM

From: Adaptive and separable multiary reversible data hiding in encryption domain

MethodParameter settingLenaCoupleBoatManPeppersBaboon
Li et al. (2018)T = 10.99990.99980.99980.99990.9999n/a
Xu and Su (2019)β = 00.99030.97440.98270.98580.98200.9387
β = 10.98870.96890.98030.98390.97170.9340
Xu and Wang (2016)Tn =  − 1
Tp = 0
0.99990.99990.99980.99990.99990.9956
Tn =  − 1
Tp = 1
0.99980.99980.99960.99980.99980.9948
Tn =  − 2
Tp = 1
0.99970.99950.99940.99960.99970.9944
ProposedQ = 20.99990.99990.99990.99990.99990.9999
Q = 30.99990.99990.99990.99990.99990.9999
Q = 40.99990.99990.99990.99990.99990.9999
  1. n/a not available