A Study on Image Segmentation Techniques

Image segmentation is critical to image processing and pattern recognition.All the typical approaches are presented and discussed in this paper.First reviewed the definition of image segmentation,then studied the major image segmentation approaches including thresholding,edge-based method,region-based method,model-based method and artificial intelligence-based method.In this paper,the merits and drawbacks of the methods were discussed too.In practice,these methods often combine to achieve the effect and raise the efficiency of image segmentation,which can not be obtained by single method.