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/* function-rgb2lab
Author :Tess Zacharias */
#include <numeric>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/opencv.hpp"
#include <iostream>
#include<stdio.h>
#include <sciprint.h>
#include<string.h>
using namespace cv;
using namespace std;
extern "C"
{
#include "api_scilab.h"
#include "Scierror.h"
#include "BOOL.h"
#include <localization.h>
#include "../common.h"
#define REF_X .95047; // Observer= 2°, Illuminant= D65
#define REF_Y 1.00000;
#define REF_Z 1.08883;
struct Color
{
float R,G,B,Y,I,Q;
};
Color rgb2ntsc(float R, float G, float B)
{
float r=R/255.0;
float g=G/255.0;
float b=B/255.0;
float y = 0.299*r + 0.587*g + 0.114*b;
float i = 0.596*r -0.274 *g - 0.322 *b;
float q = 0.211*r - 0.523*g + 0.312 *b;
Color ntsc;
ntsc.Y= y;
ntsc.I= i;
ntsc.Q= q;
return ntsc;
}
int opencv_rgb2ntsc(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* piAddr2=NULL;
int* piAddr1=NULL;
int* piAddr3=NULL;
int* piaddr=NULL;
char *value=NULL;
int* piLen = NULL;
char **val;
int i,j;
int error;
Color out;
double check;
Mat img;
float R,G,B;
int *piAddrNew = NULL;
CheckOutputArgument(pvApiCtx,1,1);
int m=0;
retrieveImage(img,1);
double *r1,*g1,*b1;
r1=(double *)malloc(sizeof(double)*img.rows*img.cols);
g1=(double *)malloc(sizeof(double)*img.rows*img.cols);
b1=(double *)malloc(sizeof(double)*img.rows*img.cols);
for(int i=0;i<img.rows;i++)
{
for(int j=0;j<img.cols;j++)
{
Vec3b intensity = img.at<Vec3b>(i,j);
R= intensity.val[2];
G= intensity.val[1];
B= intensity.val[0];
out=rgb2ntsc(R,G,B);
r1[m]=out.Y;
g1[m]=out.I;
b1[m++]=out.Q;
}
}
//creating the list that will be passed to the Scilab enviroment
sciErr = createList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, 3, &piAddrNew);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Adding the R value matrix to the list
//Syntax : createMatrixOfInteger32InList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, int _iRows, int _iCols, const int* _piData)
sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 1, img.rows,img.cols, r1);
free(r1);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Adding the G value matrix to the list
sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 2, img.rows, img.cols, g1);
free(g1);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Adding the B value matrix to the list
sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 3, img.rows, img.cols, b1);
free(b1);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// free(checker);
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
ReturnArguments(pvApiCtx);
return 0;
}
}
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