IplImage转QImage的代码

第一种：

  qImg = new QImage(QSize(img->width,img->height),
       QImage::Format_RGB888);
     iplImg = cvCreateImageHeader(cvSize(img->width,img->height),
      8,3);
     iplImg->imageData = (char*)qImg->bits();


     if (img->origin == IPL_ORIGIN_TL)
     {
      cvCopy(img,iplImg,0);
     }
     else
     {
      cvFlip(img,iplImg,0);
     }
     cvCvtColor(iplImg,iplImg,CV_BGR2RGB);

第二种：

   iplImg=cvCloneImage(img);
   cvCvtColor(img,iplImg,CV_BGR2RGB);
   uchar* imgData = (uchar*)(iplImg->imageData);

   qImg=new QImage(imgData,iplImg->width,iplImg->height,QImage::Format_RGB888);