Cryptography Reference
In-Depth Information
(a) p
1
=0,p
2
=0,BCR
1
= 100%, BCR
2
= 100%
(b) p
1
=0.1, p
2
=0.1, BCR
1
=94.27%, BCR
2
=93.44%
(c) p
1
=0.25, p
2
=0.25, BCR
1
=86.52%, BCR
2
=84.78%
(d) p
1
=0.5, p
2
=0.5, BCR
1
=73.28%, BCR
2
=71.34%
Fig. 12.13.
The two extracted watermarks under different channel erasure proba-
bilities, with a codebook size of L = 1024.
transmission over noisy channels. We modified the MDVQ and MDSQ in-
dex assignments for watermark embedding and extraction. By incorporating
this with MDC, we obtain promising results. Simulation results gave better
robustness of the watermarking algorithm, and the more resilience to com-
