图像分割是数字图像处理中的关键技术之一。图像分割是将图像中有意义的特征部分提取出来，其有意义的特征有图像中物体的边缘、区域等，这是进一步进行图像识别、分析和理解的基础。虽然目前已研究出不少边缘提取、区域分割的方法，但还没有一种普遍适用于各种图像的有效方法。因此，对图像分割的研究还在不断深入之中，是目前图像处理中研究的热点之一。-Image segmentation is a digital image processing in one of the key technologies. Image segmentation is the image in a meaningful part of extracted features, and its features meaningful images of objects in the edge, regional and so on, this is further image recognition, analysis and understanding. Although we have also developed a lot of edge extraction, the regional partition, but not yet a generally applicable to a variety of effective means of images. Therefore, image segmentation research also continued to deepen, and image processing is one of the hot research.