IplImage <-> TBitMap 상호 변환 방법

희자매파파 2009. 3. 6. 13:23

IplImage -> Bitmap 로 변경시

bool __fastcall IplImageToTBitmap (const IplImage *src,Graphics::TBitmap *dest)
{
	if (!src || !dest)          return false;

IplImage *temp;
	CvRect roi;

if (src->roi)	roi = cvGetImageROI(src);
	else         	roi = cvRect(0, 0, src->width, src->height);

temp = cvCreateImage(cvSize(roi.width, roi.height), IPL_DEPTH_8U, 3);

if (src->nChannels != 3)	cvCvtColor(src,temp, CV_GRAY2RGB);
	else                        cvCopy(src,temp);

if (dest->Width == 0 || dest->Height == 0)
   {
	  dest->Width = roi.width;
	  dest->Height = roi.height;
   }
   else
   {
	  IplImage *temp1 = cvCloneImage(temp);
	  cvReleaseImageData(temp);
	  cvInitImageHeader(temp, cvSize(dest->Width,dest->Height),
						IPL_DEPTH_8U, 3,
						src->origin, 4);
	  cvCreateImageData(temp);
	  roi.width = dest->Width;
	  roi.height = dest->Height;
	  cvResize(temp1,temp);
	  cvReleaseImage(&temp1);
   }

dest->PixelFormat = pf24bit;

try
	{
		unsigned char *pLine;
		int x, y;
		for(y = 0; y < roi.height; y++)
		{
			pLine = (unsigned char *)dest->ScanLine[roi.height - y - 1];
			for(x=0 ;x <roi.width * 3  ;x++)
			{
				pLine[x]= ((unsigned char*)(temp->imageData + temp->widthStep * y))[x];
			}
		}
	}
	catch(...)
	{
		ShowMessage("Error while converting ...");
	}

cvReleaseImage(&temp);
   return true;
}

Bitmap -> IplImage 로 변경시