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Table 2 Operation time comparisons among Xu and Wang’s work [18], Li et al.’s work [20], and ours. (unit: s)

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

 Li et al. (2018)Xu and Wang (2016)Proposed
Lena0.65060.27660.5849
Couple0.62760.28350.6749
Boat0.65880.28230.6261
Man0.65420.30900.5576
Peppers0.66160.29780.5820
Baboon0.66480.29120.7068
Average0.65290.29010.6221