Research Article
Enhancement of Unmanned Aerial Vehicle Image with Shadow Removal Based on Optimized Retinex Algorithm
Table 1
Comparison of image enhancement.
| | Average gradient (MG) | Variance () | Information entropy (IE) |
| | Original image | 3.07 | 213.93 | 5.36 | | Histogram equalization-enhanced image | 12.13 | 2697.10 | 7.36 | | Retinex-enhanced image | 19.17 | 3636.40 | 7.67 | | Mask-enhanced image with uniform light | 3.99 | 232.56 | 5.11 |
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