opencv01_image fusion

Error record:
msvc-version.conf loaded but QMAKE_MSC_VER isn't set
Solution: Delete all generated files and recompile

step:

1. read two images
2. Uniform image size
3. to fuse
4. qt display

Effect:

Code:

.h:
// opencv
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>
// file
#include <QFileDialog>
// qt
#include <QDebug>


 // 读文件
    Mat img_1, img_2;
    QString filename = QFileDialog::getOpenFileName(this, QString("src img"),
                       QString("./file"),
                       QString("File(*.*)"));
    img_1 = imread(filename.toStdString().c_str());
    filename = QFileDialog::getOpenFileName(this, QString("src img"),
                                            QString("./file"),
                                            QString("File(*.*)"));
    img_2 = imread(filename.toStdString().c_str());

    if(img_1.empty() || img_2.empty()) {
    
    
        qDebug() << "Img read error";
        return;
    }
    // 统一大小
    if(img_1.size > img_2.size) {
    
    
        cv::resize(img_2, img_2, Size(img_1.cols, img_1.rows));
    } else {
    
    
        cv::resize(img_1, img_1, Size(img_2.cols, img_2.rows));
    }

    // 融合
    double alpha = 0.5;
    double beta = 1 - alpha;
    double gamma = 0;
    Mat dst;
    // 图片1，权重，图片2，权重，显示权重，图片3
    addWeighted(img_1, alpha, img_2, beta, gamma, dst);
    imshow("dst", dst);
    // qt显示
    cvtColor(dst, dst, COLOR_BGR2RGB);//BGR convert to RGB
    QImage Qtemp = QImage((const unsigned char *)(dst.data), dst.cols, dst.rows, dst.step,
                          QImage::Format_RGB888);
    ui->label->setPixmap(QPixmap::fromImage(Qtemp));
    ui->label->resize(Qtemp.size());
    ui->label->show();