opencv 实现将2副图片求和

#include "stdafx.h"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"

#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/legacy/compat.hpp>
#include <cv.h>

#include <iostream>
using namespace std;
using namespace cv;

int main( int argc, char** argv )
{
	double alpha = 0.5; double beta; double input;

	Mat src1, src2,src3, dst;

	/// Ask the user enter alpha
	std::cout<<" Simple Linear Blender "<<std::endl;
	std::cout<<"-----------------------"<<std::endl;
	std::cout<<"* Enter alpha [0-1]: ";
	//std::cin>>input;
	input = 0.6;

	/// We use the alpha provided by the user iff it is between 0 and 1
	if( alpha >= 0 && alpha <= 1 )
	{ alpha = input; }

	/// Read image ( same size, same type )
	src1 = imread(_T("..\\images\\1.jpg"));
	src2 = imread(_T("..\\images\\2.jpg"));

	if( !src1.data ) { printf("Error loading src1 \n"); return -1; }
	if( !src2.data ) { printf("Error loading src2 \n"); return -1; }

	Mat rsizeImg(src1.rows,src1.cols,src1.type());  //创建一副和 src1 一样大小的图像
	resize(src2,rsizeImg,rsizeImg.size(),0,0,INTER_LINEAR);
	imwrite(_T("F:\\MyTest Project\\OpenCV\\images\\3.jpg"),rsizeImg);
	/// Create Windows
	namedWindow("Linear Blend", 1);

	beta = ( 1.0 - alpha );
	addWeighted( src1, alpha, rsizeImg, beta, 0.0, dst);  //2附图片的大小必须要一样
	imshow( "Linear Blend", dst );
	waitKey(0);
	return 0;
}