OpenCV提取HOG特征

#include<iostream>
#include<vector>
#include<opencv2/opencv.hpp>
#include<cv.h>
#include<highgui.h>
using namespace std;
using namespace cv;
void GetHOGHistogram(Mat img,vector<float>&descriptors)//取得图像img的HOG特征向量
{
	HOGDescriptor *hog=new HOGDescriptor(cvSize(3,3),cvSize(3,3),cvSize(5,10),cvSize(3,3),9);
	hog->compute(img,descriptors,Size(3,3), Size(0,0));
}
int main()
{
	//IplImage*img=cvLoadImage("F:\\Pics\\1.jpg",0);
	//Mat Img(img);
	Mat Img=imread("F:\\Pics\\1.jpg",0);
	vector<float>test;
	GetHOGHistogram(Img,test);
	return 0;
}