Table 1 Comparison PSNR and pixel error rate with the same embedding rate (ER). In this experiment, the proposed scheme and Ren’s scheme are tested
ER (%) | Image | Proposed scheme | Ren’s scheme [24] | ||
|---|---|---|---|---|---|
PSNR | Error rate (%) | PSNR | Error rate (%) | ||
90 | Cartoon | ∞ | 0.00 | 39.1 | 0.01 |
CAD | ∞ | 0.00 | ∞ | 0.00 | |
Texture | 24.4 | 0.36 | 22.3 | 0.59 | |
Mask | ∞ | 0.00 | ∞ | 0.00 | |
Handwriting | ∞ | 0.00 | ∞ | 0.00 | |
Document | ∞ | 0.00 | ∞ | 0.00 | |
95 | Cartoon | 25.4 | 0.29 | 24.2 | 0.37 |
CAD | ∞ | 0.00 | 43.4 | 0.01 | |
Texture | 22.2 | 0.60 | 20.4 | 0.99 | |
Mask | ∞ | 0.00 | ∞ | 0.00 | |
Handwriting | 29.4 | 0.11 | 24.6 | 0.34 | |
Document | 28.7 | 0.13 | 27.5 | 0.18 | |
100 | Cartoon | 21.2 | 0.79 | 21.1 | 0.80 |
CAD | 23.4 | 0.45 | 22.9 | 0.51 | |
Texture | 18.5 | 1.41 | 18.4 | 1.42 | |
Mask | 31.6 | 0.06 | 28.3 | 0.15 | |
Handwriting | 22.4 | 0.58 | 21.9 | 0.64 | |
Document | 23.6 | 0.43 | 23.6 | 0.44 | |