采用各向异性方法 填补一个缺损的轮廓，从而可以得到一个光滑完整的轮廓。- Completed contours correspond to ridges of an extension (ext) of the characteristic function of the uncompleted curve. Anisotropic extension is performed on the characteristic function fbound of an image set

可以在程式畫面上任意畫圖寫字並且可清除再任意使用-Can any drawing program screens and write and to clear any longer use