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/********************************************************
Author: Dhruti Shah
********************************************************
Usage: return_image = imrect(input_image, x_list, y_list)
Example:
im = imrect(image, [x1 x2], [y1 y2])
********************************************************/
#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_imrect(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr = 0;
int iRowsR=0,iColsR=0,iColsC=0,iRowsC=0;
int *piAddr = NULL;
int *piAddr2 = NULL;
double *pstDataY = NULL;
double *pstDataX = NULL;
//checking input argument
CheckInputArgument(pvApiCtx, 3, 3);
CheckOutputArgument(pvApiCtx, 1, 1) ;
// Get the input image from the Scilab environment
Mat image;
retrieveImage(image, 1);
// Get the address of 2nd argument, the x-coordinate list
sciErr = getVarAddressFromPosition(pvApiCtx, 2, &piAddr);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// Get the address of the 3rd agument, the y-coordinate list
sciErr = getVarAddressFromPosition(pvApiCtx, 3, &piAddr2);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// Get the x-coordinate list in the form of a matrix
// No. of columns = 2
// No. of rows = 1
sciErr = getMatrixOfDouble(pvApiCtx, piAddr, &iRowsC, &iColsC, &pstDataX);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// Get the y-coordinate list in the form of a matrix
// No. of columns = 2
// No. of rows = 1
sciErr = getMatrixOfDouble(pvApiCtx, piAddr2, &iRowsR, &iColsR, &pstDataY);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
Point points[1][2];
for (int i = 0; i < 2 ; i++)
{
if (pstDataY[i] < 0 || pstDataX[i] < 0)
{
sciprint("Coordinates cannot be negative.\n");
return 0;
}
else
points[0][i] = Point(pstDataX[i], pstDataY[i]);
}
rectangle(image,points[0][0],points[0][1],Scalar(0,0,0),2);
string tempstring = type2str(image.type());
char *checker;
checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker, 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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