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;

}

IplImage 与 CBitmap类 的相互转换,布布扣,bubuko.com