IplImag、HImage相互转换

IplImage* HImageToIplImage(Hobject &Hobj){    IplImage *pImage;    HTuple htChannels;    char cType[MAX_STRING];    Hlong width,height;    width = height =0;       //转换图像格式    convert_image_type(Hobj,&Hobj,"byte");    count_channels(Hobj,&htChannels);    if (htChannels[0].I() == 1)       {        unsigned char *ptr;        get_image_pointer1(Hobj,(Hlong *)&ptr,cType,&width,&height);        pImage = cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);        for(int i = 0; i<height; i++)        {             memcpy(pImage->imageData+ pImage->widthStep*i, ptr + width*i, width);         }    }    if (htChannels[0].I() == 3)       {            unsigned char *ptrRed,*ptrGreen,*ptrBlue;        ptrRed = ptrGreen =ptrBlue = NULL;            get_image_pointer3(Hobj,(Hlong *)&ptrRed,(Hlong *)&ptrGreen,(Hlong *)&ptrBlue,cType,&width,&height);            IplImage *pImageRed,*pImageGreen,*pImageBlue;        pImage = cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,3);        pImageRed = cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);        pImageGreen = cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);        pImageBlue = cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);        for(int i = 0; i<height; i++)        {             memcpy(pImageRed->imageData+ pImageRed->widthStep*i, ptrRed + width*i, width);             memcpy(pImageGreen->imageData+ pImageGreen->widthStep*i, ptrGreen + width*i, width);             memcpy(pImageBlue->imageData+ pImageBlue->widthStep*i, ptrBlue + width*i, width);         }        cvMerge(pImageBlue,pImageGreen,pImageRed,NULL,pImage);        cvReleaseImage(&pImageRed);        cvReleaseImage(&pImageGreen);        cvReleaseImage(&pImageBlue);    }       return pImage;}

Hobject IplImageToHImage(IplImage *pImage){       Hobject Hobj;    if (3 == pImage->nChannels)    {        IplImage *pImageRed,*pImageGreen,*pImageBlue;        pImageRed = cvCreateImage(cvGetSize(pImage),IPL_DEPTH_8U,1);        pImageGreen = cvCreateImage(cvGetSize(pImage),IPL_DEPTH_8U,1);        pImageBlue = cvCreateImage(cvGetSize(pImage),IPL_DEPTH_8U,1);        cvSplit(pImage,pImageBlue,pImageGreen,pImageRed,NULL);        uchar *dataRed = new uchar[pImage->width*pImage->height];        uchar *dataGreen = new uchar[pImage->width*pImage->height];;        uchar *dataBlue = new uchar[pImage->width*pImage->height];;                    int height = pImage->height;        int width =pImage->width;        for(int i = 0; i<height; i++)        {             memcpy(dataRed + width*i,pImageRed->imageData + pImageRed->widthStep*i, width);             memcpy(dataGreen + width*i,pImageGreen->imageData + pImageGreen->widthStep*i, width);             memcpy(dataBlue + width*i,pImageBlue->imageData + pImageBlue->widthStep*i, width);         }        gen_image3(&Hobj,"byte",pImage->width,pImage->height,(Hlong)(dataRed),(Hlong)(dataGreen),(Hlong)(dataBlue));        cvReleaseImage(&pImageRed);        cvReleaseImage(&pImageGreen);        cvReleaseImage(&pImageBlue);        delete[] dataRed;        delete[] dataGreen;        delete[] dataBlue;    }     if (1 == pImage->nChannels)    {        int height = pImage->height;        int width =pImage->width;        uchar *dataGray = new uchar[width*height];                    for(int i = 0; i<height; i++)        {             memcpy(dataGray + width*i,pImage->imageData + pImage->widthStep*i, width);         }        gen_image1(&Hobj,"byte",pImage->width,pImage->height,(Hlong)(dataGray));        delete[] dataGray;    }        return Hobj;}

（1）、从Hobject到IplImageIplImage* HImageToIplImage(Hobject &Hobj){IplImage*   pImage;HTuple     htChannels;char cType[MAX_STRING];Hlong    width,height;width=height=0;//转换图像格式convert_image_type(Hobj,&Hobj,"byte");count_channels(Hobj,&htChannels);if(htChannel[0].I()==1){unsinged char* ptr;get_image_pointer1(Hobj,(Hlong*)&ptr,cType,&width,&height);pImage=cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);for(int i=0;i<height;i++){memcpy(pImage->imageData+pImage->widthStep*i,ptr+width*i,width);}}if(htChannels[0].I()==3){unsinged char *ptrRed , *ptrGreen , *ptrBlue;ptrRed=ptrGreen=ptrBlue=NULL;get_image_pointer3(Hobj,(Hlong*)&ptrRed,(Hlong*)&ptrGreen,(Hlong*)&ptrBlue,cType,&width,&height)IplImage *pImageRed , *pImageGreen , *pImageBlue ;pImage=cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,3);pImageRed=cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);pImageGreen=cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);pImageBlue=cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);for(int i=0;i<height;i++){memcpy(pImageRed->imageData+pImageRed->widthStep*i , ptrRed+width*i , width);memcpy(pImageGreen->imageData+pImageGreen->widthStep*i , ptrGreen+width*i , width);memcpy(pImageBlue->imageData+pImageBlue->widthStep*i , ptrBlue+width*i , width);}cvMerge(pImageBlue,pImageGreen,pImageRed,NULL,pImage);cvReleaseImage(&pImageRed);cvReleaseImage(&pImageGreen);cvReleaseImage(&pImageBlue);}return pImage;}（2）、从IplImage到HobjectHobject IplImageToHImage(IplImage*  pImage){Hobject   Hobj;if(pImage->nChannels==1){int height=pImage->height;int width=pImage->width;uchar *dataGray=new uchar[width*height];for(int i=0; i<height; i++){memcpy(dataGray+width*i, pImage->imageData+pImage->widthStep*i,width);}gen_image1(&Hobj,"byte",pImage->width,pImage->height,(Hlong)(dataGray));delete[ ] dataGray;}if(pImage->nChannels==3){IplImage  *IpImageRed, *IplImageGreen, *IplImageBlue;IplImageRed=cvCreateImage(cvSize(pImage),IPL_DEPTH_8U,1);IplImageGreen=cvCreateImage(cvSize(pImage),IPL_DEPTH_8U,1);IplImageBlue=cvCreateImage(cvSize(pImage),IPL_DEPTH_8U,1);cvSplit(pImage, pImageBlue, pImageGreen, pImageRed,NULL);uchar*  dataRed=new uchar[pImage->width*pImage->height];uchar*  dataGreen=new uchar[pImage->width*pImage->height];uchar*  dataBlue=new uchar[pImage->width*pImage->height];int  height=pImage->height;int  width=pImage->width;for(int i=0; i<height; i++){memcpy(dataRed+width*i, pImageRed->imageData+pImageRed->widthStep*i,width);memcpy(dataGreen+width*i, pImageGreen->imageData+pImageGreen->widthStep*i,width);memcpy(dataBlue+width*i, pImageBlue->imageData+pImageBlue->widthStep*i,width);}gen_image3(&Hobj,"byte",pImage->width,pImage->height,(Hlong)(dataRed),(Hlong)(dataGreen),(Hlong)(dataBlue));cvReleaseImage(&pImageRed);cvReleaseImage(&pImageGreen);cvReleaseImage(&pImageBlue);delete[ ]  dataRed;delete[ ]  dataGreen;delete[ ]  dataBlue;}return Hobj;}（3）、封装一个画图函数void   DrawPicToHDC(IplImage* img , UINT ID){CDC* pdc=GetDlgItem(ID)->GetDC();HDC hdc=pdc->GetSafeHdc();CRect rect;GetDlgItem(ID)->GetClientRect(&rect);CvvImage vvimg;vvimg.CopyOf(img);vvimg.DrawToHDC(hdc , &rect);ReleaseDC(pdc);}（4）、测试新建一个MFC对话框项目，添加一个pic控件，ID为IDC_IMG，添加一个图片显示按钮ShowImg，双击按钮添加消息处理函数，如下建立一个全局变量IplImage* opencv_image;void  OnBnClickedShowimg(){Hobject Image;read_image(&Image,"E:/.../1.jpg");opencv_image=HImageToIplImage(Image);DrawPicToHDC(opencv_image,IDC_IMG);cvReleaseImage(&opencv_image);}

参考：http://blog.csdn.net/taily_duan/article/details/51073335