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

网站里没找到matlab版积分图hog特征函数，自己编了一个，应用于图像识别，直接调用-The site, did not find the matlab version of the integral image hog characteristic function, made up a used in image recognition, and direct calls