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/***************************************************
Author : Sukul Bagai
****************************************************
return_image = pyrDown(input_image, dstsize_width, distsize_height, border;
***************************************************/
#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_pyrDown(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr=0;
int iRows=0,iCols=0;
int *piAddr2 = NULL;
int *piAddr3 = NULL;
int *piAddr4 = NULL;
int *piLen = NULL;
char **borderType = NULL;
double dstsize_width,dstsize_height;
int border;
int i;
//checking input argument
CheckInputArgument(pvApiCtx, 4, 4);
CheckOutputArgument(pvApiCtx, 1, 1) ;
Mat image;
retrieveImage(image,1);
//for value of dstsize_width
sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr2, &dstsize_width);
if(intErr)
return intErr;
//for value of dstsize_width
sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr3 ,&dstsize_height);
if(intErr)
return intErr;
//for border
sciErr = getVarAddressFromPosition(pvApiCtx,4, &piAddr4);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfString(pvApiCtx, piAddr4, &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, piAddr4, &iRows, &iCols, piLen, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
borderType = (char**)malloc(sizeof(char*) * iRows * iCols);
for(i = 0 ; i < iRows * iCols ; i++)
{
borderType[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = getMatrixOfString(pvApiCtx, piAddr4, &iRows, &iCols, piLen, borderType);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//error checks
if(dstsize_height<0)
{
sciprint("Positive Value Required for Height. 1 value was used instead\n");
dstsize_height=1;
}
if(dstsize_width<0)
{
sciprint("Positive Value Required for Width. 1 value was used instead\n");
dstsize_width=1;
}
if((dstsize_width != image.cols*2) && (dstsize_width != image.cols*2+1) && (dstsize_width != image.cols*2-1))
{
sciprint("Incorrect dstsize_width value was used. src.cols*2+1 value was calculated and used instead\n");
dstsize_width = image.cols*2+1;
}
if((dstsize_height != image.rows*2) && (dstsize_height != image.rows*2+1) && (dstsize_height != image.rows*2-1))
{
sciprint("Incorrect dstsize_height value was used. src.rows*2+1 value was calculated and used instead\n");
dstsize_height = image.rows*2+1;
}
Mat new_image(dstsize_height,dstsize_width,image.type());
if(strcmp(borderType[0], "BORDER_CONSTANT") == 0)
border = BORDER_CONSTANT;
else if(strcmp(borderType[0], "BORDER_REPLICATE") == 0)
border = BORDER_REPLICATE;
else if(strcmp(borderType[0], "BORDER_REFLECT") == 0)
border = BORDER_REFLECT;
else if(strcmp(borderType[0], "BORDER_REFLECT_101") == 0)
border = BORDER_REFLECT_101;
else if(strcmp(borderType[0], "BORDER_WRAP") == 0)
border = BORDER_WRAP;
else
border = BORDER_DEFAULT;
pyrDown(image,new_image,Size(dstsize_width,dstsize_height),border);
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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