Accuracy Improvement of Graph-Cut Image Segmentation by using Watershed
Traditional Graph-Cut algorithm traverses all pixels at each time of computation; consequently, it consumes a lot of time.This paper improves on GraphCut algorithm based on characteristics of Watershed. The basic theory is to insert watershed into GraphCut to conduct pre-segmentation on image.With watershed, image is divided into regions which have different sizes and pixel color similarities.Images processed by watershed algorithm are converted into weighted undirected graph; and then translate energy function on pixel into that graph on separate regions after pre-segmentation.Performance of test programs has proved that the improved Graph-Cut algorithm can increase workload of user interaction mark effectively.As long as workload considered in the interaction process, improved Graph-Cut algorithm can achieve ideal segmentation effect even on complex background.
image segmentation interactive Watershed Graph-Cut
RONGJing PanYu-li
School of Transportation,Southeast University,Nanjing,210096,China Research Institute of Highway Min Research Institute of Highway Ministry of Transport,Beijing,100088,China
国际会议
厦门
英文
546-549
2011-07-08(万方平台首次上网日期,不代表论文的发表时间)