halcon-QImage彩色转Halcon彩色

说明：通过qt5的摄像头得到QImage图像

h文件

#ifndef WIN_H
#define WIN_H

#include <QWidget>
#include <QDebug>
#include "Halcon.h"
#include "HalconCpp.h"
#include "HDevThread.h"
#include <string>
#include<opencv2/opencv.hpp>
#include <QLabel>
#include <QImage>
#include <QThread>
#include <thread>  //C++多线程头文件
#include <QCamera>  //导入摄像头类
#include <QCameraInfo>  //摄像头信息类
#include <QCameraViewfinder>  //取景器类
#include <QCameraImageCapture>  //捕获类
#include <QCameraViewfinderSettings>  //摄像头设置类
#include <QPushButton>

using namespace HalconCpp;

class Win : public QWidget
{
    Q_OBJECT

public:
    Win(QWidget *parent = nullptr);
    ~Win();



    QCamera *camera; //摄像头对象
    QCameraImageCapture *imageCapture;//捕获对象

    QPushButton* buttonCapture;
    HObject hObject;
    HTuple hv_WindowHandle,hv_Width, hv_Height;


    HObject QImageToHObject(QImage image);//Qt彩色转Halcon彩色


private slots:

    void displayImage(int,QImage);
    void captureImage();






};
#endif // WIN_H

cpp文件

#include "win.h"

Win::Win(QWidget *parent)
    : QWidget(parent)
{

    this->resize(800,500);


    buttonCapture=new QPushButton("捕获",this);
    buttonCapture->move(700,400);
    camera=new QCamera(this);
    imageCapture=new QCameraImageCapture(camera);//捕获对象

    connect(imageCapture, SIGNAL(imageCaptured(int,QImage)), this, SLOT(displayImage(int,QImage)));
    connect(buttonCapture, SIGNAL(clicked()), this, SLOT(captureImage()));
    camera->start();






}

Win::~Win()
{
}



void Win::displayImage(int id, QImage image)
{

   qDebug()<<"id="<<id;
   hObject=QImageToHObject(image);

   GetImageSize(hObject, &hv_Width, &hv_Height);

   SetWindowAttr("background_color","black");
   OpenWindow(0,0,hv_Width, hv_Height,0,"visible","",&hv_WindowHandle);
    DispObj(hObject, hv_WindowHandle);


}

void Win::captureImage()  //按钮槽函数
{

    imageCapture->capture();//捕获图片

}

HObject Win::QImageToHObject(QImage image)  //QImage彩色转Halcon彩色
{

    //注意：在使用这个函数之前，最好先判断图像是否三通道
    unsigned char *data=image.bits();//获取图像像素字节数据的首地址
    int width=image.width();//图像宽
    int height=image.height();//图像高
    unsigned char* dataRed=(unsigned char*)malloc(width*height);//存储处理后的数据
    unsigned char* dataGreen=(unsigned char*)malloc(width*height);//存储处理后的数据
    unsigned char* dataBlue=(unsigned char*)malloc(width*height);//存储处理后的数据
    for (int i=0;i<height;i++){
        for (int j=0;j<width;j++){
            dataRed[i*width+j]  =*(data+2);
            dataGreen[i*width+j]=*(data+1);
            dataBlue[i*width+j]=*data;
            data+=4;
        }
    }
    HObject Image;
    GenImage3(&Image, "byte", width, height, (Hlong)(dataRed), (Hlong)(dataGreen), (Hlong)(dataBlue));
    return Image;
}