Research Article
Reversible Image Watermarking Algorithm Based on Quadratic Difference Expansion
Table 5
Performance comparison of multiround watermarking embedding algorithms.
| Image name | Evaluating indicator | One round | Two rounds | Three rounds | PSNR | SSIM | PSNR | SSIM | PSNR | SSIM |
| Lena | 79.59 | 0.997 | 77.23 | 0.996 | 75.11 | 0.994 | Baboon | 76.87 | 0.995 | 74.92 | 0.994 | 73.03 | 0.993 | Barbara | 78.46 | 0.996 | 76.51 | 0.995 | 74.39 | 0.994 | Peppers | 77.76 | 0.996 | 75.63 | 0.995 | 73.67 | 0.994 |
|
|