kkint32 OurNeighbors::LastScanLine (const ImageFeaturesList& images) const
{
kkint32 lastScanLine = 0;
ImageFeaturesList::const_iterator idx;
for (idx = images.begin (); idx != images.end (); idx++)
{
const ImageFeaturesPtr image = *idx;
if (image->SfCentroidRow () > lastScanLine)
lastScanLine = (kkint32)(image->SfCentroidRow () + 0.5f);
}
return lastScanLine;
} /* LastScanLine */
LLoydsEntryPtr OurNeighbors::DeriveLLoydsBins (const ImageFeaturesList& examples,
kkint32 lloydsBinSize
)
{
double lloydsIndex = 0.0;
kkint32 numLLoydsBins = kkint32 (lastScanLine + lloydsBinSize - 1) / kkint32 (lloydsBinSize);
VectorIntPtr lloydsBins = new VectorInt (numLLoydsBins, 0);
ImageFeaturesList::const_iterator idx;
for (idx = examples.begin (); idx != examples.end (); idx++)
{
const ImageFeaturesPtr i = *idx;
kkint32 lloydsBin = kkint32 (i->SfCentroidRow () / double (lloydsBinSize));
if (lloydsBin >= numLLoydsBins)
{
// This can not happen; but if it does; then I must of screwed up the programming.
log.Level (-1) << endl << endl << endl
<< "OurNeighbors::DeriveLLoydsBins **** ERROR ****" << endl
<< endl
<< " An invalid lloydsBin[" << lloydsBin << "] was derived." << endl
<< " must be in range of [0 - " << (numLLoydsBins - 1) << "]" << endl
<< endl;
lloydsBin = numLLoydsBins - 1;
}
(*lloydsBins)[lloydsBin]++;
}
lloydsIndex = LLoydsIndexOfPatchiness (*lloydsBins);
return new LLoydsEntry (lloydsBinSize, lloydsBins, lloydsIndex);
} /* DeriveLLoydsBins */