Research Article
Retinal Fundus Image Enhancement Using the Normalized Convolution and Noise Removing
Table 2
The comparison of CII and
r with different methods on the images shown in Figure
8.
| Image | Evaluation measures | HE | CLAHE | Method in [7] | Method in [9] | The proposed method |
| 1st in column (a) | CII | 2.3105 | 2.3252 | 3.8081 | 2.2630 | 5.9076 | | 0.5391 | 0.6264 | 0.2012 | 0.6401 | 0.2267 |
| 2nd in column (a) | CII | 3.0113 | 3.0059 | 4.6100 | 4.5377 | 7.5447 | | 0.5418 | 0.5454 | 0.2979 | 0.7148 | 0.2582 |
| 3rd in column (a) | CII | 2.2450 | 3.0392 | 4.8968 | 4.7682 | 7.9369 | | 0.5412 | 0.4865 | 0.2004 | 0.6378 | 0.2514 |
|
|