IplImage 与 CBitmap类 的相互转换

在VC中利用OpenCV做图像处理程序时，有时需要把IpImage 类型和CBitmap类型相互转换，这样就可以利用VC中的GDI+函数对图像进行某些特殊的显示和处理，非常方便。这里是本人项目中写的两个转换小函数，仅供参考，转载注明，这样方便发现问题的朋友联系我及时修改。

IplImage转换为CBitmap类型

CBitmap *IplImage2CBitmap(const IplImage *pImage){if( pImage && pImage->depth == IPL_DEPTH_8U ){   HDC hDC=GetDC(NULL);   uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];   BITMAPINFO* bmi = (BITMAPINFO*)buffer;   int bmp_w = pImage->width, bmp_h = pImage->height;   FillBitmapInfo( bmi, bmp_w, bmp_h, pImage->depth*pImage->nChannels, pImage->origin );     char *pBits=NULL;   HBITMAP hBitmap=CreateDIBSection(hDC,bmi,DIB_RGB_COLORS,(void**)&pBits,NULL,0);   memcpy(pBits,pImage->imageData,pImage->imageSize);   CBitmap *pBitmap=new CBitmap;   pBitmap->Attach(hBitmap);

   return pBitmap;}else   return NULL;}

void FillBitmapInfo( BITMAPINFO* bmi, int width, int height, int bpp, int origin ){assert( bmi && width >= 0 && height >= 0 && (bpp == 8 || bpp == 24 || bpp == 32));

BITMAPINFOHEADER* bmih = &(bmi->bmiHeader);

memset( bmih, 0, sizeof(*bmih));bmih->biSize = sizeof(BITMAPINFOHEADER);bmih->biWidth = width;bmih->biHeight = origin ? abs(height) : -abs(height);bmih->biPlanes = 1;bmih->biBitCount = (unsigned short)bpp;bmih->biCompression = BI_RGB;

if( bpp == 8 ){   RGBQUAD* palette = bmi->bmiColors;   int i;   for( i = 0; i < 256; i++ )   {    palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;    palette[i].rgbReserved = 0;   }}}

CBitmap转换为IplImage类型

IplImage *CBitmap2IplImage(const CBitmap *pBitmap){DIBSECTION ds;pBitmap->GetObject(sizeof(ds),&ds);IplImage *pImage=cvCreateImage(cvSize(ds.dsBm.bmWidth,ds.dsBm.bmHeight),8,ds.dsBmih.biBitCount/8);memcpy(pImage->imageData,ds.dsBm.bmBits,pImage->imageSize);return pImage;}