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/********************************************************
Author: Vinay
Function: ind2rgb(image, colormap)
********************************************************/
#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_ind2rgb(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr = 0;
int iRows=0,iCols=0;
int cRows=0,cCols=0;
int *piAddr = NULL;
int *piAddrNew = NULL;
int *piAddr2 = NULL;
//unsigned short int *image = NULL;
double *map = NULL;
int i,j,k;
double x, y, width, height;
//checking input argument
CheckInputArgument(pvApiCtx, 2, 2);
CheckOutputArgument(pvApiCtx, 1, 1) ;
Mat image, imgcpy;
retrieveImage(image, 1);
string tempstring = type2str(image.type());
char *imtype;
imtype = (char *)malloc(tempstring.size() + 1);
memcpy(imtype, tempstring.c_str(), tempstring.size() + 1);
bool integer;
if (strcmp(imtype,"8U")==0 || strcmp(imtype,"16U")==0) {
integer = true;
}
else if (strcmp(imtype,"32F")==0 || strcmp(imtype,"64F")==0) {
integer = false;
}
else {
sciprint("Invalid image");
return 0;
}
iRows = image.rows;
iCols = image.cols;
image.convertTo(imgcpy, CV_64F);
Mat cmap, cmapcpy;
retrieveImage(cmap, 2);
cRows = cmap.rows;
cCols = cmap.cols;
cmap.convertTo(cmapcpy, CV_64F);
for (int i=0; i<cRows; i++) {
for (int j=0; j<cCols; j++) {
if (cmapcpy.at<double>(i,j)<0 || cmapcpy.at<double>(i,j)>1) {
sciprint("Invalid colormap");
return 0;
}
}
}
double *r,*g,*b;
r=(double *)malloc(sizeof(double)*iRows*iCols);
g=(double *)malloc(sizeof(double)*iRows*iCols);
b=(double *)malloc(sizeof(double)*iRows*iCols);
int m = 0;
for (int i=0; i<iRows; i++) {
for (int j=0; j<iCols; j++) {
unsigned int temp = (unsigned int)imgcpy.at<double>(i, j);
if (temp >= cRows) {
temp = cRows - 1;
}
if (!integer) {
if (temp!=0) {temp-=1;}
}
r[i + iRows*j] = cmapcpy.at<double>(temp, 0);
g[i + iRows*j] = cmapcpy.at<double>(temp, 1);
b[i + iRows*j] = cmapcpy.at<double>(temp, 2);
}
}
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,iRows, iCols, r);
free(r);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Adding the G value matrix to the list
sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 2,iCols, iRows, g);
free(g);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Adding the B value matrix to the list
sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 3, iCols, iRows, b);
free(b);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
//Returning the Output Variables as arguments to the Scilab environment
ReturnArguments(pvApiCtx);
return 0;
}
/* ==================================================================== */
}
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