Texture Directionality-Based Digital Watermarking in Nonsubsample Shearlet Domain

Table 5

Experimental results for the JPEG compression attack.

Test image	JPEG = 30; SSIM/NC/BER	JPEG = 40; SSIM/NC/BER	JPEG = 75; SSIM/NC/BER	JPEG = 90; SSIM/NC/BER
Lena	0.8752/0.9736/1.3184	0.8914/0.9751/1.2451	0.9293/0.9937/0.3174	0.9552/0.9946/0.2686
Snow	0.8477/0.9932/0.3418	0.8706/0.9980/0.0977	0.9262/0.9902/0.4883	0.9806/0.9941/0.2930
Snow2	0.8483/0.9697/1.5137	0.8723/0.9985/0.0732	0.9274/0.9985/0.0732	0.9801/0.9990/0.0488
Crowd	0.9156/0.9692/1.5381	0.9321/0.9741/1.2939	0.9658/0.9937/0.3174	0.9834/0.9688/1.5625
Woman	0.8191/0.9790/1.0498	0.8416/0.9854/0.7324	0.9041/0.9829/0.8545	0.9480/0.9937/0.3174
Lake	0.6994/0.9902/0.4883	0.7213/0.9907/0.4639	0.8199/1.0000/0.0000	0.9488/0.9858/0.7080
Plane	0.8834/0.9409/2.9541	0.9024/0.9458/2.7100	0.9432/0.9688/1.5625	0.9666/0.9717/1.4160
Baboon	0.7598/0.9976/0.1221	0.7905/0.9976/0.1221	0.8777/0.9028/4.8548	0.9748/0.9995/0.0244
Peppers	0.8158/0.9600/2.0020	0.8336/0.9785/1.0742	0.8771/0.9863/0.6836	0.9227/0.9932/0.3418
Scenery	0.7682/0.9546/2.2705	0.8117/0.9761/1.1963	0.9334/0.9780/1.0986	0.9837/0.9897/0.5127
Man	0.8646/0.9844/0.7813	0.8857/0.9863/0.6836	0.9364/0.9917/0.4150	0.9682/0.9922/0.3906
Bridge	0.8650/0.9546/2.2705	0.8868/0.9619/1.9043	0.9435/0.9717/1.4160	0.9795/0.9780/1.0986