005-Opencv笔记-图像混合addWeighted

理论-线性混合操作

API addWeighted

//注意点：两张图像的大小和类型必须一致才可以
void addWeighted(
InputArray src1, //参数1：输入图像Mat – src1
double alpha, //参数2：输入图像src1的alpha值
InputArray src2,//参数3：输入图像Mat – src2
double beta, //参数4：输入图像src2的alpha值
double gamma, //参数5：gamma值
OutputArray dst, //参数6：输出混合图像
int dtype=-1//
);

#include "pch.h"
#include <opencv2/opencv.hpp>
#include <iostream>

using namespace std;
using namespace cv;
//图像混合
int main(int argc, char** argv) {
    Mat src1, src2, dst;
    src1 = imread("D:/t1.png");
    src2 = imread("D:/t2.png");
    if (!src1.data) {
        cout << "could not load image t1..." << endl;
        return -1;
    }
    if (!src2.data) {
        cout << "could not load image t2..." << endl;
        return -1;
    }

    double alpha = 0.5;
    if (src1.rows == src2.rows && src1.cols == src2.cols && src1.type() == src2.type()) {
         //addWeighted(src1, alpha, src2, (1.0 - alpha), 0.0, dst);//相加
         multiply(src1, src2, dst, 1.0);//相乘

        imshow("t1", src1);
        imshow("t2", src2);
        namedWindow("blend demo", CV_WINDOW_AUTOSIZE);
        imshow("blend demo", dst);
    }
    else {
        printf("could not blend images , the size of images is not same...\n");
        return -1;
    }

    waitKey(0);
    return 0;
}