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/********************************************************
Author: Diwakar Bhardwaj
*********************************************************
Usage :return_image=pyramid(input_image,'direction',level)
********************************************************/
#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_pyramid(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr = 0;
int iRows=0,iCols=0;
int *piAddr = NULL;
int *piAddrNew = NULL;
int *piAddr2 = NULL;
int *piAddr3 = NULL;
int *piLen = NULL;
char **direction = NULL;
int i,j,k=0,l=0;
double alpha, beta,x,n;
//checking input argument
CheckInputArgument(pvApiCtx, 3, 3);
CheckOutputArgument(pvApiCtx, 1, 1) ;
Mat image,new_image;
retrieveImage(image, 1);
sciErr = getVarAddressFromPosition(pvApiCtx,2, &piAddr2);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfString(pvApiCtx, piAddr2, &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, piAddr2, &iRows, &iCols, piLen, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
direction = (char**)malloc(sizeof(char*) * iRows * iCols);
for(i = 0 ; i < iRows * iCols ; i++)
{
direction[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = getMatrixOfString(pvApiCtx, piAddr2, &iRows, &iCols, piLen, direction);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr3 ,&x);
if(intErr)
return intErr;
n=x;
k=image.rows;
l=image.cols;
while(n--)
{
//if expand operation is performed
if(strcmp(direction[0], "expand") == 0)
{
pyrUp(image, new_image, Size( image.cols*2, image.rows*2 ));
//Size size((k*2)-1,(l*2)-1);
//resize(image,new_image,size);
}
//if reduced operation is performed
else if(strcmp(direction[0], "reduce") == 0)
{
pyrDown( image, new_image, Size( image.cols/2, image.rows/2 ));
//Size size(k/2,l/2);
//resize(image,new_image,size);
}
image=new_image;
}
int temp = nbInputArgument(pvApiCtx) + 1;
string tempstring = type2str(new_image.type());
char *checker;
checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker,new_image,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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