Research Article

Steganography Algorithm Based on the Nonlocal Maximum Likelihood Noise Estimation for Mobile Applications

Table 8

Standard deviation between the cover image and the stego-image.

TestRoundRed color channelGreen color channelBlue color channelGeneral

110.4405690.5020070.5340100.492195
0.4405990.5020320.5340380.492223
20.2161140.2459100.2615010.241175
0.2157490.2456430.2612740.240888
30.4405690.5020070.5340100.492195
0.4405990.5020320.5340380.492223
40.2161140.2459100.2615010.241175
0.2157490.2456430.2612740.240888

210.5843810.5442140.4756940.534763
0.5844010.5442350.4757150.534784
20.2860270.2664880.2332070.261907
0.2858710.2662820.2329010.261685
30.5843810.5442140.4756940.534763
0.5844010.5442350.4757150.534784
40.2860270.2664880.2332070.261907
0.2858710.2662820.2329010.261685

310.4084810.5144950.4920520.471676
0.4083350.5143450.4919050.471528
20.2006470.2520680.2411770.231297
0.2001290.2517620.2408350.230909
30.4084810.5144950.4920520.471676
0.4083350.5143450.4919050.471528
40.2006470.2520680.2411770.231297
0.2001290.2517620.2408350.230909

410.6134400.5052460.3719410.496876
0.6134670.5052900.3720000.496919
20.3001550.2475290.1829780.243554
0.3000490.2472880.1824520.243263
30.6134400.5052460.3719410.496876
0.6134670.5052900.3720000.496919
40.3001550.2475290.1829780.243554
0.3000490.2472880.1824520.243263

510.4288640.4538850.4167170.433155
0.4289270.4539450.4167780.433217
20.2105430.2226660.2046460.212618
0.2101630.2223370.2042410.212247
30.4288640.4538850.4167170.433155
0.4289270.4539450.4167780.433217
40.2105430.2226660.2046460.212618
0.2101630.2223370.2042410.212247

610.0556590.0400070.0280910.041252
0.0556940.0400220.0280690.041262
20.0414340.0372990.0351840.037973
0.0369750.0321310.0294340.032847
30.0556590.0400070.0280910.041252
0.0556940.0400220.0280690.041262
40.0414340.0372990.0351840.037973
0.0369750.0321310.0294340.032847

710.4519410.2407670.1736200.288776
0.4519680.2408030.1736550.288808
20.2214830.1200900.0888520.143475
0.2211210.1190170.0872160.142451
30.4519410.2407670.1736200.288776
0.4519680.2408030.1736550.288808
40.2214830.1200900.0888520.143475
0.2211210.1190170.0872160.142451

810.7012880.3820720.4096950.497685
0.7013120.3821640.4097610.497746
20.3500490.1915250.2051660.248913
0.3500710.1911200.2048100.248667
30.7012880.3820720.4096950.497685
0.7013120.3821640.4097610.497745
40.3500490.1915250.2051660.248913
0.3500710.1911200.2048100.248667