double BlobGetCompactness::operator()(Blob &blob)
{
if( blob.Area() != 0.0 )
return (double) pow(blob.Perimeter(),2)/(4*CV_PI*blob.Area());
else
return 0.0;
}
double BlobGetBreadth::operator()(Blob &blob)
{
double ampladaC,longitudC;
double tmp;
tmp = blob.Perimeter()*blob.Perimeter() - 16*blob.Area();
if( tmp > 0.0 )
ampladaC = (double) (blob.Perimeter()+sqrt(tmp))/4;
// error intr�nsec en els c�lculs de l'�rea i el per�metre
else
ampladaC = (double) (blob.Perimeter())/4;
if(ampladaC<=0.0) return 0;
longitudC = (double) blob.Area()/ampladaC;
return MIN( longitudC , ampladaC );
}
double BlobGetRoughness::operator()(Blob &blob)
{
BlobGetHullPerimeter getHullPerimeter = BlobGetHullPerimeter();
double hullPerimeter = getHullPerimeter(blob);
if( hullPerimeter != 0.0 )
return blob.Perimeter() / hullPerimeter;//HullPerimeter();
return 0.0;
}