Research Article
Image Retrieval Based on the Combination of Region and Orientation Correlation Descriptors
Table 7
Feature vector length, feature extraction, and image retrieval time of different methods.
| | Method | Feature vector length | Feature extraction time (s) | Image retrieval time (s) | Total times (s) |
| MTH
TCM |
| 0.1955
0.4728 | 3.2475
3.2521 | 3.443
3.725 | | CDH | | 0.3330 | 3.2980 | 3.631 | | SED | | 0.1419 | 3.3106 | 3.453 | | BCC | | 0.5949 | 3.2679 | 3.863 | | DCT+ GLCM | | 0.2635 | 3.2267 | 3.490 | | CROCD | | 0.1627 | 3.2472 | 3.410 |
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The best retrieval results are shown in bold.
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