Table 6 PSNR value of watermarked image (
) by several methods.
) by several methods.From: A New Robust Watermarking Scheme to Increase Image Security
| Â | Â | Â | PSNR of watermarked image | ||
|---|---|---|---|---|---|
Image | Watermark | Watermark size | Mohanty method [24] | Asatryan method [27] | Proposed method |
Lena | Figure 11(b) |
| 43.35 dB | 36.10 dB | 52.33 dB |
Lena | Figure 11(b) |
| 40.71 dB | 36.06 dB | 48.27 dB |
Lena | Figure 11(d) |
| 44.46 dB | 35.78 dB | 52.92 dB |
Lena | Figure 11(d) |
| 40.98 dB | 35.82 dB | 48.84 dB |
Baboon | Figure 11(b) |
| 43.09 dB | 36.42 dB | 52.44 dB |
Baboon | Figure 11(b) |
| 41.01 dB | 36.46 dB | 48.47 dB |
Baboon | Figure 11(d) |
| 44.19 dB | 35.91 dB | 53.08 dB |
Baboon | Figure 11(d) |
| 41.17 dB | 35.92 dB | 49.11 dB |
Peppers | Figure 11(b) |
| 43.27 dB | 35.18 dB | 51.72 dB |
Peppers | Figure 11(b) |
| 39.03 dB | 35.20 dB | 47.94 dB |
Peppers | Figure 11(d) |
| 43.18 dB | 34.90 dB | 52.27 dB |
Peppers | Figure 11(d) |
| 40.80 dB | 34.86 dB | 48.66 dB |
Crowd | Figure 11(b) |
| 43.69 dB | 35.33 dB | 51.38 dB |
Crowd | Figure 11(b) |
| 40.30 dB | 35.37 dB | 47.63 dB |
Crowd | Figure 11(d) |
| 44.12 dB | 35.10 dB | 52.04 dB |
Crowd | Figure 11(d) |
| 40.25 dB | 35.04 dB | 48.26 dB |
