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给出了一种改进的Otsu方法,采用LBV变换对TM数据进行处理,实现了B分量阈值的自动选取,以有效地提取水的精度,并引入小波多分辨率分析方法,进一步提高了自动提取水体的精度。
An improved Otsu method is proposed, which uses LBV transform to process TM data to realize the automatic selection of B component threshold to effectively extract water accuracy, and introduces the wavelet multiresolution analysis method to further improve the automatic extraction Accuracy of water body.