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/********************************************************
Author: Abhilasha Sancheti & Sukul Bagai
*********************************************************
return_image = puttext(image ,x1 ,y1 ,fontscale,r_value,g_value,b_value,text,fontface ,thickness,linetype,bottomleft(0/1));
********************************************************/
#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_puttext(char *fname, unsigned long fname_len)
{
SciErr sciErr;
int intErr=0;
int iRows=0,iCols=0;
int *piLen = NULL;
int *piLen2 = NULL;
int *piAddr2 = NULL;
int *piAddr3 = NULL;
int *piAddr4 = NULL;
int *piAddr5 = NULL;
int *piAddr6 = NULL;
int *piAddr7 = NULL;
int *piAddr8 = NULL;
int *piAddr9 = NULL;
int *piAddr10 = NULL;
int *piAddr11 = NULL;
int *piAddr12 = NULL;
int i,j,k , bottom , fontFace;
char **fontface = NULL,**text= NULL;
double thickness=1 ,linetype=8,bottomleft ;
double x1,y1,fontscale,r_value,g_value,b_value;
bool bottomLeftOrigin;
//checking input argument
CheckInputArgument(pvApiCtx, 9, 12);
CheckOutputArgument(pvApiCtx, 1, 1) ;
Mat src;
retrieveImage(src,1);
//for value of x coordinate of point of bootom-left corner of the text string
sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr2,&x1);
if(intErr)
return intErr;
//for value of y coordinate of point of bootom-left corner of the text string
sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr3 ,&y1);
if(intErr)
return intErr;
//for value of fontscale
sciErr = getVarAddressFromPosition(pvApiCtx,4,&piAddr4);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr4,&fontscale);
if(intErr)
return intErr;
//for value of R value of colour
sciErr = getVarAddressFromPosition(pvApiCtx,5,&piAddr5);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr5,&r_value);
if(intErr)
return intErr;
//for value of G value of colour
sciErr = getVarAddressFromPosition(pvApiCtx,6,&piAddr6);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr6 ,&g_value);
if(intErr)
return intErr;
//for value of Bvalue of colour
sciErr = getVarAddressFromPosition(pvApiCtx,7,&piAddr7);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr7 ,&b_value);
if(intErr)
return intErr;
/// for text to be written on the image
//Syntax : SciErr getMatrixOfString(void* _pvCtx, int* _piAddress, int* _piRows, int* _piCols, int* _piLength, char** _pstStrings)
//fisrt call to retrieve dimensions
sciErr = getVarAddressFromPosition(pvApiCtx,8,&piAddr8);
//checking for error if any
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfString(pvApiCtx, piAddr8, &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, piAddr8, &iRows, &iCols, piLen, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
text = (char**)malloc(sizeof(char*) * iRows * iCols);
for(i = 0 ; i < iRows * iCols ; i++)
{
text[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = getMatrixOfString(pvApiCtx, piAddr8, &iRows, &iCols, piLen, text);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
///for the fontface of text
sciErr = getVarAddressFromPosition(pvApiCtx,9,&piAddr9);
//checking for error if any
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
sciErr = getMatrixOfString(pvApiCtx, piAddr9, &iRows, &iCols, NULL, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
piLen2 = (int*)malloc(sizeof(int) * iRows * iCols);
//second call to retrieve length of each string
sciErr = getMatrixOfString(pvApiCtx, piAddr9, &iRows, &iCols, piLen2, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
fontface = (char**)malloc(sizeof(char*) * iRows * iCols);
for(i = 0 ; i < iRows * iCols ; i++)
{
fontface[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = getMatrixOfString(pvApiCtx, piAddr9, &iRows, &iCols, piLen2, fontface);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
// for thickness of text
sciErr = getVarAddressFromPosition(pvApiCtx,10,&piAddr10);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr10,&thickness);
if(intErr)
return intErr;
//for line type of text default: 8
sciErr = getVarAddressFromPosition(pvApiCtx,11,&piAddr11);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr11,&linetype);
if(intErr)
return intErr;
// for shift in line defulat : 0
sciErr = getVarAddressFromPosition(pvApiCtx,12,&piAddr12);
if (sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
intErr = getScalarDouble(pvApiCtx, piAddr12,&bottomleft);
if(intErr)
return intErr;
if (bottomleft == 0)
bottomLeftOrigin = false;
else if (bottomleft == 1)
bottomLeftOrigin = true;
else
{
bottomLeftOrigin = false;
sciprint("Only 0 and 1 acceptable , taking false instead");
}
/// setting fontface FONT_HERSHEY_SIMPLEX, FONT_HERSHEY_PLAIN, FONT_HERSHEY_DUPLEX, FONT_HERSHEY_COMPLEX, FONT_HERSHEY_TRIPLEX, FONT_HERSHEY_COMPLEX_SMALL,
// FONT_HERSHEY_SCRIPT_SIMPLEX, or FONT_HERSHEY_SCRIPT_COMPLEX,
if(strcmp(fontface[0],"FONT_HERSHEY_SIMPLEX")==0)
fontFace = FONT_HERSHEY_SIMPLEX;
else if (strcmp(fontface[0],"FONT_HERSHEY_PLAIN")==0)
fontFace= FONT_HERSHEY_PLAIN;
else if (strcmp(fontface[0],"FONT_HERSHEY_DUPLEX")==0)
fontFace= FONT_HERSHEY_DUPLEX;
else if (strcmp(fontface[0],"FONT_HERSHEY_COMPLEX")==0)
fontFace= FONT_HERSHEY_COMPLEX;
else if (strcmp(fontface[0],"FONT_HERSHEY_TRIPLEX")==0)
fontFace = FONT_HERSHEY_TRIPLEX;
else if (strcmp(fontface[0],"FONT_HERSHEY_COMPLEX_SMALL")==0)
fontFace = FONT_HERSHEY_COMPLEX_SMALL;
else if (strcmp(fontface[0],"FONT_HERSHEY_SCRIPT_SIMPLEX")==0)
fontFace = FONT_HERSHEY_SCRIPT_SIMPLEX;
else if (strcmp(fontface[0],"FONT_HERSHEY_SCRIPT_COMPLEX")==0)
fontFace = FONT_HERSHEY_SCRIPT_COMPLEX;
else
{
sciprint("Invalid fontface given. FONT_HERSHEY_PLAIN was used instead");
fontFace = FONT_HERSHEY_PLAIN;
}
//temporary pt variable, to use in function as bottom left corner
Point pt1(x1,y1);
/// checking the parmeters for correct values
if( r_value <0 || r_value >255)
{
r_value=0;
sciprint(" r value of colour should be between 0 and 255 , using 0 instead");
}
if( g_value <0 || g_value >255)
{
g_value=0;
sciprint(" g value of colour should be between 0 and 255 , using 0 instead");
}
if( b_value <0 || b_value >255)
{
b_value=0;
sciprint(" b value of colour should be between 0 and 255 , using 0 instead");
}
if ((linetype!=0) && (linetype!=4)&& (linetype!=8))
{
linetype=8;
sciprint("Only 0/4/8 allowed , using 8 instead");
}
//syntax: putText(Mat& img, const string& text, Point org, int fontFace, double fontScale, Scalar color, int thickness=1, int lineType=8, bool bottomLeftOrigin=false )
putText( src, text[0], pt1, fontFace, fontscale, Scalar(b_value,g_value,r_value), thickness, linetype, bottomLeftOrigin );
string tempstring = type2str(src.type());
char *checker;
checker = (char *)malloc(tempstring.size() + 1);
memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
returnImage(checker,src,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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