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Table 6 Operation time comparisons among four methods during the embedding process. (unit:s)

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

 Xu and Wang (2016)Li et al. (2018)Xu and Su (2019)Proposed
Lena0.06640.44560.31640.1282
Couple0.06410.40210.31990.1067
Boat0.07380.34480.34350.1158
Man0.07580.41560.32460.1308
Peppers0.07700.42690.30600.1314
Baboon0.0918n/a0.30550.1273