Table 2 Average dice coefficients of hard segmentations were obtained from 22 scans, before and after normalization, comparing our method with that of histogram matching [7]
| Â | WM | GM | CSF | Mean |
|---|---|---|---|---|
DSC (input image) | 0.8092 ± 0.0190 | 0.6700 ± 0.0496 | 0.5225 ± 0.0351 | 0.6751 |
DSC (normalized image with hist. matching) | 0.8149 ± 0.0196 | 0.6768 ± 0.0506 | 0.5309 ± 0.0358 | 0.6832 |
DSC (normalized image with hist. normalization) | 0.8261* ± 0.0178 | 0.6884* ± 0.0494 | 0.5482* ± 0.0362 | 0.6986 |