Table 9 Robustness analysis for original watermark 3 versus recovered watermark 3.

From: Convolutional neural network and wavelet composite against geometric attacks a watermarking approach

Recovered Watermark3

MSE

PSNR(dB)

NC

Sample image 1

1.278e− 24

287.0763

0.99997

Sample image 2

3.3205e− 25

292.9187

0.99987

Sample image 3

2.48833e− 25

291.2437

0.99996

Sample image 4

3.4458e− 25

292.7580

0.99988

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