Research Article
Implementing a Parallel Image Edge Detection Algorithm Based on the Otsu-Canny Operator on the Hadoop Platform
Table 1
Comparison of the running times of different algorithms under different data scales.
| Image scale | Running time (S) | Canny algorithm | Otsu-Canny algorithm [21] | Parallel Canny algorithm | The proposed approach (4 slave nodes) |
| 1,000 | 30 | 30 | 27 | 28 | 3,000 | 58 | 60 | 51 | 50 | 8,000 | 92 | 95 | 76 | 75 | 16,000 | 155 | 159 | 93 | 93 | 30,000 | 487 | 488 | 199 | 201 | 60,000 | 840 | 843 | 275 | 276 |
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