Research Article
Mathematical Model Design of the Traditional Dress Recognition Algorithm Based on Digital Watermarking Technology
Table 4
Watermark robustness test results of the 256 ∗ 256-level gray Lena image.
| Operations on images | 1024 error bits | Error rate |
| JPEG compression (mass factor) = 0 | 112 | 11.05 | JPEG compression (mass factor) = 5 | 85 | 8.03 | JPEG compression (mass factor) = 10 | 53 | 4.97 | JPEG compression (mass factor) = 15 | 38 | 3.54 | JPEG compression (mass factor) = 20 | 26 | 2.43 | JPEG compression (mass factor) = 30 | 13 | 1.35 | Mosaic treatment | 9 | 1.07 | Image smoothing | 34 | 0.34 | Image Gaussian smoothing | 3 | 3.45 | Image sharpening | 12 | 1.06 | Enhanced image sharpening | 16 | 1.32 | Add evenly distributed noise | 32 | 3.05 | Add Gaussian distributed noise | 12 | 3.78 | Histogram equalization | 16 | 1.25 |
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