OpenCV中IplImage与Qt中的QImage转化
在工程中由于要涉及到OpenCV中IplImage与Qt中的QImage转化，所以写了两个类：
#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 // 灰度图，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;
}