OpenCV中IplImage与Qt中的QImage转化

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;
}