Research Article
Reversible Image Watermarking Algorithm Based on Quadratic Difference Expansion
Table 2
Comparison of PSNR (dB) and SSIM.
| Image name | Proposed algorithm | Literature [10] algorithm | PSNR | SSIM | PSNR | SSIM |
| Lena | 79.59 | 0.997 | 45.72 | 0.983 | Baboon | 76.87 | 0.995 | 47.37 | 0.985 | Barbara | 78.46 | 0.996 | 44.94 | 0.982 | Peppers | 77.76 | 0.996 | 45.81 | 0.981 |
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