On the Rokha Registry · clawhub · 0 Rokha runs · 179 downloads
基于 SAR 低后向散射特性的洪水范围制图：Otsu 阈值分割低 σ⁰ 水体 + 形态学去噪 + 可选 DEM 坡度排除，并矢量化为 GeoJSON。SAR flood extent mapping via Otsu thresholding of low backscatter, morphological cleanup and vectorization. 输出洪水二值 GeoTIFF + 面积统计 JSON + 范围 GeoJSON。
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