Table 4 Comparison of proposed method and two related methods.
From: A New Robust Watermarking Scheme to Increase Image Security
Host image size | Watermark size | Average PSNR of watermarked Image | Average PSNR of extracted watermark after different attacks | ||||
|---|---|---|---|---|---|---|---|
| Â | Â | Proposed method | Mohanty method [24] | Asatryan method [27] | Proposed method | Mohanty method [24] | Asatryan method [27] |
|
| 49.81 dB | 39.44 dB | 34.72 dB | 19.69 dB | 16.04 dB | 18.10 dB |
|
| 53.15 dB | 42.31 dB | 35.63 dB | 18.68 dB | 15.57 dB | 17.96 dB |
|
| 48.18 dB | 37.98 dB | 33.55 dB | 20.70 dB | 16.93 dB | 18.79 dB |
|
| 52.90 dB | 41.09 dB | 34.73 dB | 18.74 dB | 15.59 dB | 18.52 dB |
