OpenCV中IplImage 与 Gdiplus 中Bitmap之间的相互转换

Gdiplus::Bitmap转 IplImage

// pIplImage 需要外部释放 Mosesyuan
void CGeneral::BitmapToIplImage(Bitmap* pBitmap, IplImage* &pIplImg)
{
if (!pBitmap)
{
return;
}
if(pIplImg)
{
cvReleaseImage(&pIplImg);
pIplImg = NULL;
}
BitmapData bmpData;
Rect rect(0,0,pBitmap->GetWidth(),pBitmap->GetHeight());
pBitmap->LockBits(&rect, ImageLockModeRead, PixelFormat24bppRGB, &bmpData);
IplImage* tempImg = cvCreateImage(cvSize(pBitmap->GetWidth(), pBitmap->GetHeight()), IPL_DEPTH_8U, 3);
BYTE* temp = (bmpData.Stride>0)?((BYTE*)bmpData.Scan0):((BYTE*)bmpData.Scan0+bmpData.Stride*(bmpData.Height-1));
memcpy(tempImg->imageData, temp, abs(bmpData.Stride)*bmpData.Height);
pBitmap->UnlockBits(&bmpData);
pIplImg = tempImg;
//判断Top-Down or Bottom-Up

if (bmpData.Stride<0)

cvFlip(pIplImg, pIplImg);
}
OpenCV中 IplImage 转 Gdiplus::Bitmap

// pBitmap 同样需要外部释放！！

void CGeneral::IplImageToBitmap(IplImage* pIplImg, Bitmap* &pBitmap)
{
if(!pIplImg)
return;

BITMAPINFOHEADER bmih;
memset(&bmih, 0, sizeof(BITMAPINFOHEADER));
bmih.biSize = sizeof(BITMAPINFOHEADER);
bmih.biWidth = pIplImg->width;
bmih.biHeight = pIplImg->height;
bmih.biPlanes = 1;
bmih.biBitCount = pIplImg->depth*pIplImg->nChannels;
bmih.biSizeImage = pIplImg->imageSize;

BYTE* pData=new BYTE[bmih.biSizeImage];
memcpy(pData, pIplImg->imageDataOrigin, pIplImg->imageSize);

if (pBitmap)
{
delete pBitmap;
pBitmap = NULL;
}
pBitmap = Gdiplus::Bitmap::FromBITMAPINFO((BITMAPINFO*)&bmih, pData);

}