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/* ==================================================================== */
/* Author :Priyanka Hiranandani NIT Surat */
/* ==================================================================== */
/* Syntax : return_image=rgb2gray(sourceimage) */
/* ==================================================================== */
#include <numeric>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/opencv.hpp"
#include "opencv2/imgproc/imgproc.hpp" //new header file for cvtColor function of opencv
#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 opencv_rgb2gray(char *fname, unsigned long fname_len)
{
// Error management variable
SciErr sciErr;
//checking input argument
CheckInputArgument(pvApiCtx,1,1);
//checking output argument
CheckOutputArgument(pvApiCtx, 1, 1)
Mat img,grayimg;
//calling function
retrieveImage(img,1);
cvtColor(img, grayimg, CV_BGR2GRAY );
string tempstring = type2str(grayimg.type());
char* checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker,grayimg,1);
//returning output variable
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
ReturnArguments(pvApiCtx);
return 0;
}
/* ==================================================================== */
}
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