From: A Contourlet-Based Image Watermarking Scheme with High Resistance to Removal and Geometrical Attacks
Characteristic | Proposed method | CEW | Method I & Method II |
---|---|---|---|
Watermark type | Gray scale | Binary | Binary |
No. watermark bits embedded | 17 KB(128×128) | Not mentioned | 16×16 |
PSNR in dB | 46.97 | Not mentioned | ≈ 47 |
No. reported attacks | 13 | 3 | 3 |
Extraction type | Nonblind | Nonblind | Nonblind |