将流域分割方法用于遥感图像的处理过程,实现地物目标的精确分割。对普通流域分割方法、基于标记的流域分割方法和基于小波变换的流域分割方法等3种方法进行比较分析。结果表明,经过基于小波变换的流域分割方法处理后的遥感图像分割边缘精度更高,过分割现象少,是一种有效的遥感图像分割方法。 The method of watershed segmentation is applied to the processing of remote sensing images to achieve the accurate segmentation of objects and objects. This paper compares and analyzes the three methods of ordinary river basin segmentation method, marker-based river basin segmentation method and watershed segmentation method based on wavelet transform. The results show that the edge segmentation of remote sensing images processed by the wavelet transform-based watershed segmentation method has higher edge accuracy and less over-segmentation, which is an effective remote sensing image segmentation method.