OpenCV中IplImage与Qt中的QImage转化

#ifndef IMAGETRANSFORM_H
#define IMAGETRANSFORM_H

#include "highgui.h"
#include "cv.h"
#include <QImage>

#define RGB_TYPE 3              //R,G,B三通道
#define GRAY_TYPE 1             //格雷图，单通道

class ImageCVtoQT
{
public:
    ImageCVtoQT(IplImage *_srcImage);
    ~ImageCVtoQT();
    const QImage getQtImage(void);

private:
    IplImage *srcImage;          //原图

    //QImage desImage;             //转换图
    int width;
    int height;
    int channel;                 //图像通道数
};

class ImageQTtoCV
{
public:
    ImageQTtoCV(QImage _srcImage);
    ~ImageQTtoCV();
    IplImage *getCvImage(void);

private:
    QImage srcImage;
    int width;
    int height;
    //int channel;
};

#endif

 

#include"ImageTransform.h"

/*************************************************
*OpenCV中的图像结构IplImage转换成QT中的QImage
*************************************************/
ImageCVtoQT::ImageCVtoQT(IplImage *_srcImage)
:srcImage(_srcImage)
{
    assert(srcImage!=NULL);   
    width=srcImage->width;
    height=srcImage->height;
    channel=srcImage->nChannels;
}

ImageCVtoQT::~ImageCVtoQT()
{
    cvReleaseImage(&srcImage);
}

const QImage ImageCVtoQT::getQtImage()
{
    QImage desImage=QImage(width,height,QImage::Format_RGB32);
    for(int i=0;i<height;i++)
    {
        for(int j=0;j<width;j++)
        {
            int r,g,b;
            if(RGB_TYPE==channel)
            {
                b=(int)CV_IMAGE_ELEM(srcImage,uchar,i,j*3+0);
                g=(int)CV_IMAGE_ELEM(srcImage,uchar,i,j*3+1);
                r=(int)CV_IMAGE_ELEM(srcImage,uchar,i,j*3+2);
            }
            else if(GRAY_TYPE==channel)
            {
                b=(int)CV_IMAGE_ELEM(srcImage,uchar,i,j);
                g=b;
                r=b;
            }
            desImage.setPixel(j,i,qRgb(r,g,b));
        }
    }
    return desImage;
}


//////////////////////////////////////////////////////////////////////

/*********************************************
*QT中的QImage图像结构转换成OpenCV中的IplImage
**********************************************/
ImageQTtoCV::ImageQTtoCV(QImage _srcImage)
:srcImage(_srcImage)
{
    assert(!srcImage.isNull());
    width=srcImage.width();
    height=srcImage.height();

}

ImageQTtoCV::~ImageQTtoCV()
{
}

IplImage *ImageQTtoCV::getCvImage()
{
    IplImage *desImage=cvCreateImage(cvSize(width,height),8,3);
    for(int i=0;i<height;i++)
    {
        for(int j=0;j<width;j++)
        {
            QRgb rgb=srcImage.pixel(j,i);
            CV_IMAGE_ELEM(desImage,uchar,i,j*3+0)=qBlue(rgb);
            CV_IMAGE_ELEM(desImage,uchar,i,j*3+1)=qGreen(rgb);
            CV_IMAGE_ELEM(desImage,uchar,i,j*3+2)=qRed(rgb);
        }
    }
    return desImage;
}