Opencv(2) QT自定义opengl的Widget绘制Mat

Opencv(2) QT自定义opengl的Widget绘制Mat

//matview.h
#pragma once
#include
class matview:public QOpenGLWidget
{
    Q_OBJECT

public:
    matview(QWidget *p);
    ~matview();
    void paintEvent(QPaintEvent *e);
};

//matview.cpp
#include "stdafx.h"
#include "matview.h"
#include 
#include 
#include 
#include 
#include 
using namespace cv;

void matview::paintEvent(QPaintEvent *e)
{
    Mat src = imread("lena.jpg");
    cvtColor(src, src, COLOR_BGR2RGB);
    //存放图像的类型
    QImage img(src.data, src.cols, src.rows, QImage::Format_RGB888);
    QPainter painter;
    painter.begin(this);
    painter.drawImage(QPoint(0, 0), img);
}
matview::matview(QWidget *p) :QOpenGLWidget(p)
{
}


matview::~matview()
{
}