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/******************************************************************************************
*Author : Kevin George
*
*-> To execute, Image = convolver(I1, size, values,scalar)
* where 'I1' is image to be convoluted,
* where 'size' is size of kernel i.e size x size gives total no. of values in kernel,
* where 'values' contains the values of the kernel
* where 'scalar' is a float value
*
*******************************************************************************************/
#include <numeric>
#include <string.h>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/opencv.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/features2d/features2d.hpp"
#include "opencv2/nonfree/features2d.hpp"
#include "opencv2/nonfree/nonfree.hpp"
#include <iostream>
#include <math.h>
#include <vector>
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"
// # include "../common.cpp"
int opencv_convolver(char *fname, unsigned long fname_len)
{
//-> Error Management variables
SciErr sciErr;
int intErr=0;
//-> Mat containers for images
Mat image_1;
Mat image_2;
//-> Address of Various Arguments
int *piAddr = NULL;
//-> Local Variables
double *values1 = NULL;
float *values2 =NULL;
double size;
double scalar;
int iRows = 0;
int iCols = 0;
int *outList = NULL;
unsigned char *red = NULL;
unsigned char *green = NULL;
unsigned char *blue = NULL;
//-> Checks the number of arguments
//-> pvApiCtx is a Scilab environment pointer
CheckInputArgument(pvApiCtx, 1, 5); //Check on Number of Input Arguments
CheckOutputArgument(pvApiCtx, 1, 5); //Check on Number of Output Arguments
//-> Read Image
retrieveImage( image_1, 1);
//retrieveImage(image_2, 2);
//-> Count number of input arguments
//num_InputArgs = *getNbInputArgument(pvApiCtx);
//-> Based on number of input arguments
//***************************************************** Actual Processing *************************************************************
//-> Taking in size of kernel
sciErr = getVarAddressFromPosition(pvApiCtx, 2, &piAddr);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//intErr = getScalarInteger32(pvApiCtx, piAddr, &size);
intErr = getScalarDouble(pvApiCtx, piAddr, &size);
if(intErr)
{
return intErr;
}
if( size > 5)
{
Scierror(999," Invalid Value size. Please enter a non negative Double value\\n");
return 0;
}
//-> Taking the kernel values
sciErr = getVarAddressFromPosition(pvApiCtx, 3, &piAddr);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfDouble(pvApiCtx, piAddr, &iRows, &iCols, &values1);
//sciErr = getMatrixOfInteger32(pvApiCtx, piAddr, &iRows, &iCols, &values);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
if(iRows*iCols!=9 && iRows*iCols!=16 && iRows*iCols!=25 )
{
Scierror(999,"Invalid Argument\n");
return 0;
}
values2 = (float*)malloc(sizeof(float)*size*size);
for(int i=0; i<size*size; i++)
{
values2[i] = (float)values1[i];
}
//-> Taking scalar values
sciErr = getVarAddressFromPosition(pvApiCtx, 4, &piAddr);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr, &scalar);
if(intErr)
{
return intErr;
}
if( scalar == 0)
{
Scierror(999," Invalid scalar value. Please enter a non negative Double value\\n");
return 0;
}
//float kdata[] = {1, 4, 6, -1, 3, 5, -1, -2, 2};
Mat kernel(size,size,CV_32F, values2);
Mat kernel2 = kernel/ (float)(scalar);
Point anchor;
double delta;
int ddepth;
anchor = Point( -1, -1 );
delta = 0;
ddepth = -1;
//filter2D(image_1, image_2, CV_32F, kernel);
filter2D(image_1, image_2, ddepth,kernel2,anchor,delta, BORDER_DEFAULT);
//imshow("Convoluted Image",image_2);
//waitKey(0);
if( image_2.channels() == 1)
{
sciErr = createList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, 1, &outList);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
red = (unsigned char *)malloc(sizeof(unsigned char)*image_2.rows*image_2.cols);
for(int k=0;k<image_2.rows;k++)
for(int p=0;p<image_2.cols;p++)
red[k+image_2.rows*p]=image_2.at<uchar>(k, p);
sciErr = createMatrixOfUnsignedInteger8InList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, outList, 1, image_2.rows, image_2.cols, red);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
free(red);
}
else
{
sciErr = createList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, 3, &outList);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
red = (unsigned char *)malloc(sizeof(unsigned char)*image_2.rows*image_2.cols);
green = (unsigned char *)malloc(sizeof(unsigned char)*image_2.rows*image_2.cols);
blue = (unsigned char *)malloc(sizeof(unsigned char)*image_2.rows*image_2.cols);
for(int k=0;k<image_2.rows;k++)
{
for(int p=0;p<image_2.cols;p++)
{
Vec3b intensity = image_2.at<Vec3b>(k, p);
red[k+image_2.rows*p]=intensity.val[2];
green[k+image_2.rows*p]=intensity.val[1];
blue[k+image_2.rows*p]=intensity.val[0];
}
}
sciErr = createMatrixOfUnsignedInteger8InList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, outList, 1, image_2.rows, image_2.cols, red);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = createMatrixOfUnsignedInteger8InList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, outList, 2, image_2.rows, image_2.cols, green);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = createMatrixOfUnsignedInteger8InList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, outList, 3, image_2.rows, image_2.cols, blue);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
free(red);
free(green);
free(blue);
}
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
ReturnArguments(pvApiCtx);
return 0;
}
}
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