Research Article
DCT Watermarking Approach for Security Enhancement of Multimodal System
Table 5
Watermark Extraction Error Rate due to Gaussian filtering (7 × 7) attack.
| Image | Watermark extraction BER (%) | Proposed method | Method in [26] | Method in [27] |
| Texture | 0.16 | Destroyed | Destroyed | cameraman | 0.12 | Destroyed | Destroyed | India logo | 0.14 | Destroyed | Destroyed | Bank logo | 0.13 | Destroyed | Destroyed |
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