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/********************************************************
Authors: Sukul Bagai, Abhilasha Sancheti
********************************************************/
#include <numeric>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/opencv.hpp"
#include <iostream>
using namespace cv;
using namespace std;
extern "C"
{
#include "api_scilab.h"
#include "Scierror.h"
#include "BOOL.h"
#include <localization.h>
#include <sciprint.h>
#include "../common.h"
int opencv_houghcircles(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int iRows=0,iCols=0;
int *piAddr2 = NULL;
int *piAddr3 = NULL;
int *piAddr4 = NULL;
int *piAddr5 = NULL;
int *piAddr6 = NULL;
int *piAddr7 = NULL;
int i,j,k;
double *dp =NULL , *mindist = NULL ,*param1= NULL ,*param2=NULL;
double *minradius =NULL, *maxradius = NULL;
//checking input argument
CheckInputArgument(pvApiCtx, 7, 7);
CheckOutputArgument(pvApiCtx, 1, 1) ;
Mat src;
retrieveImage(src,1);
// for dp parameter of houghCircles function
sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr2, &iRows, &iCols ,&dp);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// for minDist parameter of houghCircles function
sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr3, &iRows, &iCols ,&mindist);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// for param1 parameter of houghCircles function
sciErr = getVarAddressFromPosition(pvApiCtx,4,&piAddr4);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr4, &iRows, &iCols ,¶m1);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// for param2 parameter of houghCircles function
sciErr = getVarAddressFromPosition(pvApiCtx,5,&piAddr5);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr5, &iRows, &iCols ,¶m2);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// for minradius parameter of houghCircles function
sciErr = getVarAddressFromPosition(pvApiCtx,6,&piAddr6);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr6, &iRows, &iCols ,&minradius);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// for maxradius parameter of houghCircles function
sciErr = getVarAddressFromPosition(pvApiCtx,7,&piAddr7);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr7, &iRows, &iCols ,&maxradius);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
Mat src_gray;
cvtColor( src, src_gray, CV_BGR2GRAY );
/// Reduce the noise so we avoid false circle detection
vector<Vec3f> circles;
/// Apply the Hough Transform to find the circles
HoughCircles( src_gray, circles, CV_HOUGH_GRADIENT, dp[0], mindist[0], param1[0], param2[0], minradius[0], maxradius[0] );
int rows = circles.size();
cout<<circles.size();
double *output = (double *)malloc(3*rows*sizeof(double *));
/// Draw the circles detected
for(int i=0;i<rows;i++)
{
*(output + i*3 + 0) = circles[i][0];
*(output + i*3 + 1) = circles[i][1];
*(output + i*3 + 2) = circles[i][2];
}
sciErr = createMatrixOfDouble(pvApiCtx, nbInputArgument(pvApiCtx) + 1, rows, 3, output);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Assigning the list as the Output Variable
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
//Returning the Output Variables as arguments to the Scilab environment
ReturnArguments(pvApiCtx);
return 0;
}
}
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