中文说明：资源描述对于图像，我们首先进行简单的预处理，然后再对其进行hog特征提取，下载后要更改一下图像读取的路径，对于hog特征的步长我们设置为16
English Description：
Application backgroundFor the image, we first make a simple preprocessing, and then to the hog feature extraction, to change the path to change the image read, for the size of the hog feature set to 16