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/********************************************************
Author: Shubheksha Jalan
*********************************************************
Mat getGaussianKernel(int ksize, double sigma, int ktype=CV_64F )
********************************************************/
#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_getgaussiankernel(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr=0;
int iRows=0,iCols=0;
int *piLen = NULL;
int *piAddr = NULL;
int *piAddrNew = NULL;
int *piAddr2 = NULL;
int *piAddr3 = NULL;
double ksize, sigma;
char **kType = NULL;
int i, j, k;
//checking input argument
CheckInputArgument(pvApiCtx, 3, 3);
CheckOutputArgument(pvApiCtx, 1, 1) ;
//for value of ksize
sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr, &ksize);
if(intErr || ksize < 0 || (int) ksize % 2 == 0)
{
return intErr;
}
//for first value of size
sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr2, &sigma);
if(intErr)
{
return intErr;
}
sciErr = getVarAddressFromPosition(pvApiCtx, 3, &piAddr3);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Now, we will retrieve the string from the input parameter. For this, we will require 3 calls
//first call to retrieve dimensions
sciErr = getMatrixOfString(pvApiCtx, piAddr3, &iRows, &iCols, NULL, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
piLen = (int*)malloc(sizeof(int) * iRows * iCols);
//second call to retrieve length of each string
sciErr = getMatrixOfString(pvApiCtx, piAddr3, &iRows, &iCols, piLen, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
kType = (char**)malloc(sizeof(char*) * iRows * iCols);
for(i = 0 ; i < iRows * iCols ; i++)
kType[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
//third call to retrieve data
sciErr = getMatrixOfString(pvApiCtx, piAddr3, &iRows, &iCols, piLen, kType);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
Mat temp;
if(strcmp(kType[0], "CV_32F") == 0)
temp = getGaussianKernel(ksize, sigma, CV_32F
);
else if(strcmp(kType[0], "CV_64F") == 0)
temp = getGaussianKernel(ksize, sigma, CV_64F);
double *m = (double *)malloc(temp.rows*temp.cols*sizeof(double));
for(i=0;i<temp.rows;i++)
{
for(j=0;j<temp.cols;j++)
{
uchar intensity = temp.at<uchar>(i, j);
*(m + i*temp.cols + j) = intensity;
}
}
sciErr = createMatrixOfDouble(pvApiCtx, nbInputArgument(pvApiCtx) + 1, temp.rows, temp.cols, m);
//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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