Research Article
Cryptanalysis and Improvement of the Robust and Blind Watermarking Scheme for Dual Color Image
Figure 2
Attack of the original scheme. (a) The original watermarked image and (b) original watermark; (c) the attacker’s watermarked image and (d) the watermark in (c); (e) the attacked image of (a); (f) the extracted watermark from (e).
(a) PSNR: 46.3667 |
(b) |
(c) PSNR: 46.5436 |
(d) |
(e) PSNR: 44.9439 |
(f) |