Image Watermark Based on Extended Shearlet and Insertion Using the Largest Information Entropy on Horizontal Cone

Table 6

Experimental results under the attack of “Gaussian” white noise (mean = 0).

Variance	v = 0.00001	v = 0.00005	v = 0.0001	v = 0.0005	v = 0.001
Lena
PSNR	47.9293	42.5216	39.7561	32.9411	29.9570
MSE	1.0475	3.6585	6.8782	33.0349	65.6718
NC	0.9849	0.9766	0.9575	0.8721	0.8345
The extracted watermark
Boat
PSNR	48.0248	42.5474	39.7670	32.9706	29.9739
MSE	1.0247	3.6169	6.8608	32.8114	65.4169
NC	0.9854	0.9697	0.9565	0.8643	0.8179
The extracted watermark
Barbara
PSNR	48.0677	42.5511	39.7595	32.9428	29.9936
MSE	1.0146	3.6138	6.8727	33.0220	65.1206
NC	0.9844	0.9663	0.9443	0.8701	0.8301
The extracted watermark