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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; }