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//histeq function is for grayscale image
/* ==================================================================== */
/* Author :Priyanka Hiranandani NIT Surat */
/* ==================================================================== */
/* Syntax : return_image=histeq(rgbimage);
/* ==================================================================== */
#include <numeric>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.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<string.h>
#include "../common.h"
int histeq(char *fname, unsigned long fname_len)
{
// Error management variable
SciErr sciErr;
//variable info
int iRows = 0;
int iCols = 0;
int piRows = 0;
int piCols = 0;
int* piAddr = NULL;
int* piAddrNew = NULL;
int* piLen = NULL;
char** pstData = NULL;
int * pstData2 = NULL;
int* piAddr3 =NULL;
int* piAddr4 =NULL;
double *rrows;
double *rcols;
int t;
//checking input argument
CheckInputArgument(pvApiCtx,1,1);
//checking output argument
CheckOutputArgument(pvApiCtx,1,1) ;
//for first argument
Mat img;
retrieveImage(img,1);
Mat dst;
////open cv function to equalize the histogram
equalizeHist(img,dst);
string tempstring = type2str(dst.type());
char* checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker,dst,1);
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
ReturnArguments(pvApiCtx);
return 0;
}
}
/* ==================================================================== */
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