An Enhanced Informed Watermarking Scheme Using the Posterior Hidden Markov Model
Figure 7
Illustration of the images watermarked by the PostHIW with set to be 70, 80, and 90, respectively. (a) Lena (, PSNR = 33.35 dB, = 20.88). (b) Lena (, PSNR = 36.09 dB, = 18.15). (c) Lena (, PSNR = 39.71 dB, = 15.32).
