Research Article
An Image Similarity Acceleration Detection Algorithm Based on Sparse Coding
Table 3
SIFT algorithm similarity detection results.
| Number | Original image | Reduce grayscale | Increase grayscale | Add mark | Gaussian blur | Image crop |
| 1 | 0.77 | 0.75 | 0.74 | 0.75 | 0.77 | 0.59 | 2 | 0.43 | 0.41 | 0.41 | 0.42 | 0.43 | 0.38 | 3 | 0.36 | 0.34 | 0.32 | 0.36 | 0.32 | 0.32 | 4 | 0.09 | 0.03 | 0.09 | 0.13 | 0.03 | 0.06 | 5 | 0.48 | 0.52 | 0.44 | 0.48 | 0.20 | 0.24 | 6 | 0.18 | 0.16 | 0.18 | 0.20 | 0.09 | 0.09 | 7 | 0.21 | 0.18 | 0.20 | 0.20 | 0.18 | 0.18 | 8 | 0.64 | 0.62 | 0.60 | 0.60 | 0.63 | 0.63 | 9 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10 | 0.77 | 0.74 | 0.72 | 0.79 | 0.62 | 0.38 | 11 | 0.28 | 0.28 | 0.19 | 0.28 | 0.13 | 0.17 | 12 | 0.06 | 0.06 | 0.06 | 0.06 | 0.08 | 0.03 | 13 | 0.04 | 0.04 | 0.04 | 0.04 | 0.06 | 0.04 | 14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 15 | 0.79 | 0.77 | 0.69 | 0.79 | 0.69 | 0.44 |
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