| Ramoving Non—uniform Illumination Effects from Deep—sea Floor Images |
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| 引用本文： | JINShuying GONGJianya 等. Ramoving Non—uniform Illumination Effects from Deep—sea Floor Images[J]. 地球空间信息科学学报, 2002, 5(1): 12-17. DOI: 10.1007/BF02863488 |
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| 作者姓名： | JINShuying GONGJianya 等 |
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| 作者单位： | Ph.Dcandidate,LIESMARS,WuhanUniversity,129LuoyuRoad,Wuhan430079,China |
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| 基金项目： | Projectsupportedby“863”High_techProject(No.82 0_0 1_0 1_0 2 ) |
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| 摘 要： | The deep-sea floor images are acquired under non-uniform illumination,the effects of which bring up many difficulties for image segmentation.The paper compares three methods of removing non-uniform illumination effects.The effectiveness and robustness are evaluated on three test images with high-,moderate- and low-density grains,respectively.The results show that local filtering algorithm does not remove the non-uniform illumination effects completely.The image subtracting algorithm will lose some of the dynamic range of the original data.The enhanced image stretching algorithm is the most effective one.
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| 关 键 词： | 深海海底照明 非均匀照明效应 自适应滤波 |
Removing non-uniform illumination effects from deep-sea floor images |
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| Jin Shuying Ph. D,Gong Jianya,Zhang Xiaodong. Removing non-uniform illumination effects from deep-sea floor images[J]. Geo-Spatial Information Science, 2002, 5(1): 12-17. DOI: 10.1007/BF02863488 |
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| Authors: | Jin Shuying Ph. D Gong Jianya Zhang Xiaodong |
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| Affiliation: | JIN Shuying GONG Jianya ZHANG Xiaodong |
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| Abstract: | The deep_sea floor images are acquired under non_uniform illumination,the effects of which bring up many difficulties for image segmentation.The paper compares three methods of removing non_uniform illumination effects.The effectiveness and robustness are evaluated on three test images with high_,moderate_ and low_density grains,respectively.The results show that local filtering algorithm does not remove the non_uniform illumination effects completely.The image subtracting algorithm will lose some of the dynamic range of the original data.The enhanced image stretching algorithm is the most effective one. |
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| Keywords: | non_uniform illumination adaptive filtering image subtracting |
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