Research Article
Application of Histogram Equalization for Image Enhancement in Corrosion Areas
Table 3
Mean of each image before and after enhancement.
| | Enhanced method | Corrosion image 1 | Corrosion image 2 | Corrosion image 3 |
| | Original image | 87.5562 | 84.3078 | 85.6116 | | Dark detail enhancement [24] | 92.3003 | 94.3114 | 93.4265 | | Defogging algorithm [17] | 97.3792 | 97.1280 | 97.2139 | | Homomorphic filtering [15] | 95.2913 | 96.8900 | 97.1972 | | Histogram [26] | 100.4714 | 102.3978 | 101.4569 | | Proposed algorithm | 107.4185 | 106.6196 | 108.3890 |
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