C++ CBlob::AddInternalContour方法代码示例

//.........这里部分代码省略.........
			{
				pLabels++;
				pVisitedPoints++;
				continue;
			}
			
			// new external contour: current label == 0 and above pixel is background
			if( j > 0 )
			{
				externalContour = ((*pAboveInputImage == backgroundColor) || 
								  (maskImage && *pAboveMask == 0)) && 
								  (*pLabels == 0);
			}
			else
				externalContour = (*pLabels == 0);

			// new internal contour: below pixel is background and not visited
			if( !externalContour && j < imageHeight - 1 )
			{
				internalContour = *pBelowInputImage == backgroundColor &&
								  !GET_BELOW_VISITEDPIXEL( pVisitedPoints, imageWidth);
			}
			else
			{
				internalContour = false;
			}
			
			
			if( externalContour )
			{
				currentPoint = cvPoint(i,j);
				// assign label to labelled image
				*pLabels = currentLabel;
				
				// create new blob
				currentBlob = new CBlob(currentLabel, currentPoint, imageSizes );

				// contour tracing with currentLabel
				contourTracing( inputImage, maskImage, currentPoint, 
								labelledImage, visitedPoints, 
								currentLabel, false, backgroundColor, currentBlob->GetExternalContour() );

				// add new created blob
				blobs.push_back(currentBlob);

				currentLabel++;
			}
			else 
			{
				if( internalContour )
				{
					currentPoint = cvPoint(i,j);

					if( *pLabels == 0 )
					{
						// take left neightbour value as current
						if( i > 0 )
							contourLabel = *(pLabels - 1);
					}
					else
					{
						contourLabel = *pLabels;
					}

					if(contourLabel>0)
					{
						currentBlob = blobs[contourLabel-1];
						CBlobContour newContour(currentPoint, currentBlob->GetStorage());
						

						// contour tracing with contourLabel
						contourTracing( inputImage, maskImage, currentPoint, labelledImage, visitedPoints,
										contourLabel, true, backgroundColor, &newContour ); 

						currentBlob->AddInternalContour( newContour );
					}
				}
				// neither internal nor external contour
				else
				{
					// take left neightbour value as current if it is not labelled
					if( i > 0 && *pLabels == 0 )
						*pLabels = *(pLabels - 1);
				}

			}
			
			pLabels++;
			pVisitedPoints++;

		}
	}


	// free auxiliary buffers
	free( labelledImage );
	free( visitedPoints );

	return true;
}