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Table 5 Comparison among four methods in terms of SSIM, PSNR, and ER for UCID

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

MethodSSIMPSNR (dB)ER (bpp)
Xu and Wang (2016)0.998845.170.337
Li et al. (2018)0.996235.730.858
Xu and Su (2019)0.976427.410.365
Proposed0.999749.590.433