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/********************************************************
Author: Tess Zacharias
********************************************************/
#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 "string.h"
#include "../common.h"
int opencv_corner(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr = 0;
int *piAddr2 = NULL;
int *piAddr3 = NULL;
char* pstData = NULL;
char* pstData1 = NULL;
int iRet = 0;
int iRet1 = 0;
CheckInputArgument(pvApiCtx, 1, 3);
CheckOutputArgument(pvApiCtx, 1, 1) ;
Mat src,src_gray;
int thresh = 200;
int max_thresh = 255;
retrieveImage(src, 1);
cvtColor( src, src_gray, COLOR_BGR2GRAY );
Mat dst, dst_norm, drawing;
dst = Mat::zeros( src.size(), CV_32FC1 );
int blockSize = 2;
int apertureSize = 3;
double k = 0.04;
int maxCorners = 23;
RNG rng(12345);
if(nbInputArgument(pvApiCtx)==1)
{
cornerHarris( src_gray, dst, blockSize, apertureSize, k, BORDER_DEFAULT );
normalize( dst, dst_norm, 0, 255, NORM_MINMAX, CV_32FC1, Mat() );
convertScaleAbs( dst_norm, drawing );
for( int j = 0; j < dst_norm.rows ; j++ )
{
for( int i = 0; i < dst_norm.cols; i++ )
{
if( (int) dst_norm.at<float>(j,i) > thresh )
{
circle( drawing, Point( i, j ), 5, Scalar(0), 2, 8, 0 );
}
}
}
}
else if(nbInputArgument(pvApiCtx)==3)
{
sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
if(isStringType(pvApiCtx, piAddr2))
{
if(isScalar(pvApiCtx, piAddr2))
{
iRet = getAllocatedSingleString(pvApiCtx, piAddr2, &pstData);
}
}
else
{
sciprint(" The second argument should be string ");
return 0;
}
if(strcasecmp(pstData,"Method")==0)
{
sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
if(isStringType(pvApiCtx, piAddr3))
{
if(isScalar(pvApiCtx, piAddr3))
{
iRet1 = getAllocatedSingleString(pvApiCtx, piAddr3, &pstData1);
}
}
else
{
sciprint(" The third argument should be string ");
return 0;
}
if(strcasecmp(pstData1,"Harris")==0)
{
cornerHarris( src_gray, dst, blockSize, apertureSize, k, BORDER_DEFAULT );
normalize( dst, dst_norm, 0, 255, NORM_MINMAX, CV_32FC1, Mat() );
convertScaleAbs( dst_norm, drawing );
for( int j = 0; j < dst_norm.rows ; j++ )
{
for( int i = 0; i < dst_norm.cols; i++ )
{
if( (int) dst_norm.at<float>(j,i) > thresh )
{
circle( drawing, Point( i, j ), 5, Scalar(0), 2, 8, 0 );
}
}
}
}
else if(strcasecmp(pstData1,"MinEigenvalue")==0)
{
if( maxCorners < 1 )
{
maxCorners = 1;
}
/// Parameters for Shi-Tomasi algorithm
vector<Point2f> corners;
double qualityLevel = 0.01;
double minDistance = 10;
int blockSize = 3;
bool useHarrisDetector = false;
double k = 0.04;
/// Copy the source image
drawing = src.clone();
goodFeaturesToTrack( src_gray,corners,maxCorners,qualityLevel,minDistance,Mat(),blockSize,useHarrisDetector,k );
int r = 4;
for( int i = 0; i < corners.size(); i++ )
{
circle( drawing, corners[i], r, Scalar(rng.uniform(0,255), rng.uniform(0,255),rng.uniform(0,255)), -1, 8, 0 );
}
}
else
{
sciprint(" The third argument must be 'Harris' or 'Mineigenvalue' ");
return 0;
}
}
else
{
sciprint(" The second argument must be 'Method' ");
return 0;
}
}
string tempstring = type2str(drawing.type());
char *checker;
checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker,drawing,1);
free(checker);
//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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