改进的分水岭分割算法在遥感图像分割中的应用

In this paper a new algorithm is proposed to solve threshold selection and the over-segmentation caused by watershed segmentation algorithm First, the image is enhanced based on Mathematic Morphology. Then the gradient image, which is calculated by the Sobel operator is used for over-segmentation and a threshold is set. And then the certain area is chosen for different kind of image, so it leads to the homogeneous regions in the segmentation result. Finally the interest target is received based on threshold selection algorithm. The experimental results show that this method can be powerful to restrain the over-segmentation and the interesting target can be fast received.