void cvFilterByArea(CvBlobs &blobs, unsigned int minArea, unsigned int maxArea)
{
CvBlobs::iterator it=blobs.begin();
while(it!=blobs.end())
{
CvBlob *blob=(*it).second;
if ((blob->area<minArea)||(blob->area>maxArea))
{
cvReleaseBlob(blob);
CvBlobs::iterator tmp=it;
++it;
blobs.erase(tmp);
}
else
++it;
}
}
bool cvbCvBlobsAdd(cvb::CvBlobs* blobs, unsigned int label, cvb::CvBlob* blob)
{
if (!blob) return false;
cvb::CvBlob* newBlob = new cvb::CvBlob();
memcpy(newBlob, blob, sizeof(cvb::CvBlob));
std::pair< cvb::CvBlobs::iterator, bool > result = blobs->insert(cvb::CvLabelBlob(label, newBlob));
if (!result.second)
{ //key already exist
//blob is not added
//we should delete the newBlob to avoid memory leak
cvReleaseBlob(newBlob);
delete newBlob;
}
return result.second;
}