Table 3 Results of embedding data in Lena image with different size.
From: A Contourlet-Based Image Watermarking Scheme with High Resistance to Removal and Geometrical Attacks
Host image size | Watermark size | PSNR (dB) | NC |
|---|---|---|---|
1024×1024 | 256×256 (65 KB) | 47.1197 | 0.996708 |
512×512 | 128×128 (17 KB) | 46.968 | 0.986253 |
256×256 | 64×64 (5.05 KB) | 36.9065 | 0.977844 |