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)