Research Article
A Polar Complex Exponential Transform-Based Zero-Watermarking for Multiple Medical Images with High Discrimination
Table 10
Computational time comparison (s).
| Proposed scheme | Scheme [19] | Scheme [20] | Scheme [24] | 1 image each group | 3 images each group | 5 images each group |
| 11.98 | 12.18 | 11.90 | 269.52 | 186.65 | 18.36 |
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