Table 2 Results for the image “Baboon” under distinct tampering attacks
From: Quantization-based image authentication scheme using QR error correction
Size (pixels) | Schemes | Authenticated image (dB) | Tampered image (dB) | Recovered image (dB) |
|---|---|---|---|---|
15 × 15 | Yang and Shen’s scheme | 43.45 | 27.76 | 38.67 |
The proposed scheme | 51.11 | 38.83 | 48.75 | |
20 × 20 | Yang and Shen’s scheme | 43.45 | 25.80 | 38.30 |
The proposed scheme | 51.11 | 35.59 | 47.25 | |
25 × 25 | Yang and Shen’s scheme | 43.45 | 24.39 | 35.99 |
The proposed scheme | 51.11 | 32.23 | 44.47 | |
30 × 30 | Yang and Shen’s scheme | 43.45 | 23.14 | 31.41 |
The proposed scheme | 51.11 | 30.08 | 40.87 |