Reversible Data Hiding Using Two Marked Images Based on Adaptive Coefficient-Shifting Algorithm
Figure 5
Two stego-images generated by the proposed method. (a) Stego-image 1 of Lena (33.19 dB), (b) stego-image 2 of Lena (34.25 dB), (c) stego-image 1 of Baboon (30.41 dB), and (d) stego-image 2 of Baboon (30.78 dB).