1.对pro进行配置。使其可以理解opencv。
INCLUDEPATH+=d:\opencv249\include\opencv\
d:\opencv249\include\opencv2\
d:\opencv249\include LIBS+=d:\opencv249\lib\libopencv_calib3d249.dll.a\
d:\opencv249\lib\libopencv_contrib249.dll.a\
d:\opencv249\lib\libopencv_core249.dll.a\
d:\opencv249\lib\libopencv_features2d249.dll.a\
d:\opencv249\lib\libopencv_flann249.dll.a\
d:\opencv249\lib\libopencv_gpu249.dll.a\
d:\opencv249\lib\libopencv_highgui249.dll.a\
d:\opencv249\lib\libopencv_imgproc249.dll.a\
d:\opencv249\lib\libopencv_legacy249.dll.a\
d:\opencv249\lib\libopencv_ml249.dll.a\
d:\opencv249\lib\libopencv_objdetect249.dll.a\
d:\opencv249\lib\libopencv_video249.dll.a
2.在*.ui内创建两个命令button。一个标签。其界面为：
aaarticlea/png;base64,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" alt="" />
3.配置其.h文件、.cpp文件。
.h文件：
#ifndef MAINWINDOW_H
#define MAINWINDOW_H #include <QMainWindow>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
namespace Ui {
class MainWindow;
} class MainWindow : public QMainWindow
{
Q_OBJECT public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
cv::Mat image;
QImage img; private slots:
void on_pushButton_clicked(); void on_pushButton_2_clicked(); private:
Ui::MainWindow *ui;
}; #endif // MAINWINDOW_H
.cpp文件
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QString>
#include <QFileDialog>
#include <QMessageBox>
#include <opencv/cv.h>
#include <QTextCodec>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
} MainWindow::~MainWindow()
{
delete ui;
} void MainWindow::on_pushButton_clicked()
{
QString filename = QFileDialog::getOpenFileName(this,tr("Open Image"),"",tr("Image File(*.bmp *.jpg *.jpeg *.png)"));
QTextCodec *code = QTextCodec::codecForName("gb18030");
std::string name = code->fromUnicode(filename).data();
image = cv::imread(name);
if(!image.data)
{
QMessageBox msgBox;
msgBox.setText(tr("image data is null"));
msgBox.exec();
}
else
{
cv::cvtColor(image,image,CV_BGR2RGB);
img = QImage((const unsigned char*)(image.data),image.cols,image.rows, image.cols*image.channels(), QImage::Format_RGB888);
ui->label->clear();
ui->label->setPixmap(QPixmap::fromImage(img));
//ui->processPushButton->setEnabled(true);
ui->label->resize(ui->label->pixmap()->size());
}
} void MainWindow::on_pushButton_2_clicked()
{
cv::flip(image,image,1);
img = QImage((const unsigned char*)(image.data),image.cols,image.rows,image.cols*image.channels(), QImage::Format_RGB888);
ui->label->setPixmap(QPixmap::fromImage(img));
}
补充：
image.cols*image.channels()
可以改为image.step.
參考资料：
1.使用Qt显示openCV矩阵图片 http://blog.csdn.net/homechao/article/details/8989641
2. Qt中用QLabel显示OpenCV中Mat图像数据出现扭曲现象的解决 http://lovelittlebean.blog.163.com/blog/static/11658218620125208212189/