Table 4 Results of Robustness (NC) for all Host medical images against all attacks.
From: Enhanced medical image watermarking using hybrid DWT-HMD-SVD and Arnold scrambling
Attack Name | brain 1 | brain 2 | breast 1 | breast 2 | COVID-1 | COVID-2 | lung Ct scan 1 | lung Ct scan 2 | Pneumonia 1 | Pneumonia 2 |
|---|---|---|---|---|---|---|---|---|---|---|
No Attack | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
JPEG2000 compression | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.98 | 0.98 | 0.98 | 0.99 |
Salt and pepper noise | 0.98 | 0.92 | 0.98 | 0.99 | 0.97 | 0.97 | 0.94 | 0.95 | 0.94 | 0.97 |
Speckle noise | 0.98 | 0.96 | 0.98 | 0.99 | 0.97 | 0.97 | 0.97 | 0.97 | 0.98 | 0.98 |
Sharpening attack | 0.97 | 0.95 | 0.96 | 0.96 | 0.99 | 0.98 | 0.93 | 0.94 | 0.96 | 0.98 |
JPEG compression | 0.96 | 0.92 | 0.98 | 0.99 | 0.98 | 0.99 | 0.97 | 0.95 | 0.97 | 0.98 |
Median | 0.90 | 0.90 | 0.68 | 0.61 | 0.94 | 0.96 | 0.50 | 0.50 | 0.77 | 0.69 |
Gaussian low-pass filter | 0.53 | 0.55 | 0.06 | 0.18 | 0.86 | 0.89 | – | – | 0.28 | 0.68 |
Average filter | 0.51 | 0.53 | 0.04 | 0.15 | 0.85 | 0.89 | – | – | 0.26 | 0.67 |
