Hog descr iptor for image analysis

从后面的代码就可以看出来。本文参考的资料为opencv自带的sample。 　　开发环境：opencv2.4.2+Qt4.8.2+ubuntu12-This article describes how to use the next opencv the hog algorithm has been integrated in the opencv hog this. In fact, it is easy to use, can be seen from the code behind. Re

提取灰度图的hog特征，非常好用，我用Lena图的(Extracting hog features of grayscale is very useful. I use Lena diagram.)