Image segmentation is the technology and process which divide an image into regions with different characteristics and extract the target people interested.It is one of important and basic issues in the field of image processing and computer vision, is the key step in image processing and image analysis. The results of segmentation directly affects the performance of the vision system.An in-depth study on the image segmentation technology via the assessment of principle, application and application effect is of great significance. Hence,the study on the image segmentation has always been the focus and hot research in image processing.
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