Table 4 Average estimation index among the quality of the input image, the reference image, and the normalized image on 11 subjects
Image type | \( \overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\frown}$}}{\sigma }_{n} \) |
|---|---|
Reference image | 0.0026 |
Input image | 18.0061 |
Normalized image with hist. matching | 4.6796 |
Normalized image with hist. normalization | 0.1675 |