To carry on small comparison for he different threshold value under the image segmentation result, have to use many windows,namely for take a look at a different threshold value of slice segmentation ’s result at same window , the window be divided into many small window.But conduct a lone medical science slice observation, withdraw\"interested area\", need bilever value , even multi-threshold value, can carry on a single piece at fixed position to browse and segment into slices by selected threshold value .Multi-windows bilever threshold value methods can not only withdraw\"interested area\" of the medical science slice, but also take a look at a different threshold value of slice segmentation ’s result at same window-To carry on small comparison for he differe nt threshold value under the image segmentatio n result, many have to use windows, namely for take a look at a different threshold v alue of slice segmentation 's win at same result dow. the window be divided into many small window.Bu not conduct a lone medical science slice observat ion, withdraw "interested area," need bilever value, even multi-threshold value, can carry on a single piece at fixed position to b rowse and segment into slices by selected thres hold value. Multi-windows bilever threshold v alue methods can not only withdraw "interested area "of the medical science slice. but also take a look at a different threshold val ue of slice segmentation 's result at same windo w