/* Recursive function. Store local array */
long int rarray(long int x) {
if (x <= 0)
return x;
volatile long int a[3];
a[1] = x-1;
return rarray(x-2) + a[1];
}
bool
CppIterCHT (vector < unsigned int >originImage,
vector < unsigned int >dim_originImage, unsigned int maxR,
vector < unsigned int >&edgeImage,
vector < unsigned int >&dim_edgeImage,
vector < unsigned int >&result_row,
vector < unsigned int >&result_col,
vector < unsigned int >&result_r,
vector < unsigned int >&result_peak)
{
// result_row, result_col: based from 0.
//mxArray *prhs[1], *plhs[1];
//double *tempGetPr;
//mxLogical *tempGetLogicals;
if (!(dim_originImage.size () == 2 && dim_edgeImage.size () == 2)) {
#ifdef MATLABPRINT
mexPrintf ("CppIterCHT ==> inputs are invalid, failed!\n");
#endif
return false;
}
edgeImage.clear ();
edgeImage.resize (originImage.size ());
copy (originImage.begin (), originImage.end (), edgeImage.begin ());
dim_edgeImage[0] = dim_originImage[0];
dim_edgeImage[1] = dim_originImage[1];
vector < unsigned int >accumulator (edgeImage.size (), 0);
vector < unsigned int >rarray (edgeImage.size (), 0),
peakarray (edgeImage.size (), 0);
unsigned int currentrow, currentcol, edgecellnum = 0;
//prhs[0]=mxCreateDoubleMatrix(dim_edgeImage[0], dim_edgeImage[1], mxREAL); // used for calling MATLAB function "imregionalmax"
for (unsigned int rcount = 1; rcount <= maxR; rcount++) {
accumulator.assign (accumulator.size (), 0);
edgecellnum = 0;
for (unsigned int pcount = 0; pcount < edgeImage.size (); pcount++) {
if (edgeImage[pcount] != 0) // the pixel is on the edge
{
// draw circle with center at the pixel and radius rcount in accumulator.
currentrow =
MatrixLZ::ind2subrow (pcount, dim_edgeImage[0], dim_edgeImage[1],
MatrixLZ::ColMajor);
currentcol =
MatrixLZ::ind2subcol (pcount, dim_edgeImage[0], dim_edgeImage[1],
MatrixLZ::ColMajor);
CppRasterCircle (currentcol + 1, currentrow + 1, rcount, accumulator,
dim_edgeImage);
edgecellnum += 1;
}
}
for (unsigned int i = 0; i < accumulator.size (); i++) {
if (accumulator[i] > peakarray[i]) {
rarray[i] = rcount;
peakarray[i] = accumulator[i];
}
}
//tempGetPr=mxGetPr(prhs[0]);
//for (unsigned i=0; i<accumulator.size(); i++)
//{
// tempGetPr[i]=static_cast<double>(accumulator[i]);
//}
//mexCallMATLAB(1, plhs, 1, prhs, "imregionalmax");
//tempGetLogicals=mxGetLogicals(plhs[0]);
//for (unsigned int i=0; i<accumulator.size(); i++)
//{
// if (tempGetLogicals[i] && accumulator[i]>peakarray[i])
// {
// rarray[i]=rcount;
// peakarray[i]=accumulator[i];
// }
//}
//mxDestroyArray(plhs[0]);
}
//mxDestroyArray(prhs[0]);
unsigned int maxpeak;
maxpeak = *(max_element (peakarray.begin (), peakarray.end ()));
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// the threshold used to determine whether local peak indicates a
// circle. If the local peak value is no less than maximum local peak
// value and no less than 0.1*(number of cells on edge), it is deemed to
// be a circle center in the image.
result_row.clear ();
result_col.clear ();
result_r.clear ();
result_peak.clear ();
for (unsigned int i = 0; i < peakarray.size (); i++) {
if (peakarray[i] >= 1 * maxpeak
&& peakarray[i] >= static_cast <
unsigned int >(0.1 * edgecellnum + 0.5)) {
currentrow =
MatrixLZ::ind2subrow (i, dim_edgeImage[0], dim_edgeImage[1],
MatrixLZ::ColMajor);
currentcol =
MatrixLZ::ind2subcol (i, dim_edgeImage[0], dim_edgeImage[1],
MatrixLZ::ColMajor);
result_row.push_back (currentrow);
result_col.push_back (currentcol);
result_r.push_back (rarray[i]);
result_peak.push_back (peakarray[i]);
}
}
return true;
}
