Table 2 AMBE, EC, saturation and second-order entropy values for the enhanced grayscale images
Image | EC | AMBE | Saturation | Entropy |
|---|---|---|---|---|
Test image in Figure 4 | 0.0372 | Â | Â | 3.2331 |
HE | 0.0548 | 0.1508 | 3.60 | 4.2073 |
CLAHE | 0.0636 | 0.1311 | 3.54 | 4.1527 |
Proposed method | 0.0537 | 0.1159 | 3.59 | 4.0078 |
imadjust | 0.0474 | 0.0827 | 0.00 | 3.5967 |
Image | EC | AMBE | Saturation | Entropy |
Test image in Figure 5 | 0.0401 | Â | Â | 3.6281 |
HE | 0.0531 | 0.1327 | 1.52 | 4.2510 |
CLAHE | 0.0698 | 0.0410 | 0.06 | 4.4609 |
Proposed method | 0.0581 | 0.0396 | 0.37 | 4.2702 |
imadjust | 0.0531 | 0.0492 | 1.33 | 4.0464 |