#include<iostream>
#include<opencv2/imgproc/imgproc.hpp>
#include<opencv2/highgui/highgui.hpp>
using namespace cv;
using namespace std;
int main()
{
	Mat M=imread("d:/1.png");
	cvtColor(M,M,CV_RGB2GRAY);
	Mat sobelx,sobely,dst;
	Mat sobellx,sobelly;
	//sobel(src,dst,深度，dx,dy,内核，缩放，delta默认0，边界模式默认值)
	Sobel(M,sobelx,CV_8UC1,1,0,3,1,1,BORDER_DEFAULT);
	convertScaleAbs(sobelx,sobellx);//取绝对值后转换为8bit
	Sobel(M,sobely,CV_8UC1,0,1,3,1,1,BORDER_DEFAULT);
	convertScaleAbs(sobely,sobelly);

	addWeighted(sobelx,0.5,sobely,0.5,0,dst);
    imshow("s",dst);	
	waitKey();
}