Opencv 两幅图像混合

Opencv 两幅图像混合

//dst混合图像，src1原图1，src2原图2，a:第一幅图像的透明度，gamma：增益，像素增强
dst = src1*a + src2*(1-a) + gamma;

a = [0~1];//浮点数，防止像素值超出允许范围

画面叠化(cross-dissolve)效果

addWeighted(src1,a,src2,1-a,0.0(gamma),dst);//src的宽高比例一致


#include<iostream>
#include<stdio.h>
#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/imgproc.hpp>
using namespace cv;
using namespace std;

int main(int argc, char *argv)
{
    Mat src1 = imread("lena.jpg");
    Mat src2 = imread("peppers.bmp");
    Mat dst;
    resize(src2, src2, src1.size());
    float a = 0.6;

    addWeighted(src1, a, src2, 1 - a, 0.0, dst);

    namedWindow("dst");
    moveWindow("dst", 0, 0);


    imshow("dst",dst);
    waitKey(0);


    return 0;
}