Survey on Image Segmentation
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The image segmentation is a key technology for image processing,also is a classical,difficult problem for reserachers.No method which is fit for all segmentation problems has been found and no criterion for judging it established since this research started.In this paper,a survey on image segmentation methods such as threshold segmentation,edge detection and region extraction is given,and some new methods appeared recently and some researches on segmentation evaluation criterions are introduced respectively and finally a developing direction of the imgage segmentation technology is pointed out.