Protection of Health Imagery by Region Based Lossless Reversible Watermarking Scheme

Table 6

Performance comparison.

Scheme	ROI based	Block based	Identification of exact tampered block	Tamper recovery
Coatriex et al. [15]	Yes	No	Yes	No
Wu et al. [16]	Yes	Yes	No	With JPEG compressed form of ROI
Chiang et al. [17]	Yes	Yes	No	With average intensity of blocks
Guo and Zhuang [18]	Yes	Yes	Yes	No
Al-Qershi and Khoo [19]	Yes	Yes	No	With original pixels of blocks
Memon et al. [20]	Yes	Yes	No	No
Kim et al. [21]	No	Yes	No	With average intensity of blocks
Das and Kundu [23]	Yes	Yes	Yes	No
Proposed method	Yes	Yes	Yes	With compressed form of ROI