Table 7 Results of applying image filters with clustering size of 4 on SVM model
Applied clusters | Model accuracy of each cluster(s) with image filtering (%) | |||||
|---|---|---|---|---|---|---|
Image sharpening | Image thresholding | Median blur | Gamma correction | Fast-NLmeans | Bilateral | |
1st cluster | 86.2 | 85.7 | 86.1 | 85.1 | 85.8 | 86.1 |
2nd cluster | 85.7 | 85.8 | 85.5 | 86.1 | 85.9 | 85.8 |
3rd cluster | 86.8 | 85.9 | 84.7 | 86.4 | 86.4 | 86.4 |
4th cluster | 85.9 | 85.4 | 86.8 | 86.1 | 85.2 | 85.8 |
1st and 2nd cluster | 84.9 | 85.7 | 85.1 | 85.7 | 86.4 | 86.2 |
1stand 3rd cluster | 86.8 | 86.1 | 84.5 | 85.4 | 86.4 | 86.5 |
1st and 4th cluster | 86.2 | 85.7 | 85.9 | 86.1 | 86.5 | 85.5 |
1st, 2nd and 3rd cluster | 86.2 | 85.9 | 83.4 | 84.8 | 86.1 | 86.5 |
1st, 2nd and 4th cluster | 85.4 | 85.8 | 86.1 | 85.8 | 86.2 | 86.5 |
1st, 3rd and 4th cluster | 86.5 | 86.2 | 84.4 | 86.4 | 86.5 | 85.8 |
2nd and 3rd cluster | 85.5 | 86.2 | 84.5 | 85.9 | 85.8 | 86.5 |
2nd and 4th cluster | 85.9 | 85.4 | 85.5 | 85.8 | 86.1 | 86.2 |
2nd, 3rd and 4th cluster | 86.4 | 85.8 | 86.1 | 85.9 | 85.9 | 86.1 |
3rd and 4th cluster | 86.2 | 85.9 | 85.5 | 86.4 | 85.8 | 85.8 |
All clusters | 86.1 | 86.4 | 83.9 | 85.8 | 85.8 | 85.8 |