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/*
* integralImage
*
* integralImage in scilab
*
*/
// Created by Samiran Roy, mail: samiranroy@cse.iitb.ac.in
// An implementation of integralImage method of matlab
// Usage:
// integralImage(I) : Calculate the integral image of I, I must be grayscale
// method : 'upright' (default)
// method : 'rotated' The area sums are calulated over a rectangle, which is rotated 45 degrees
// Known Changes from Matlab:
/*
* 1) None, as of now
*/
#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_integralImage(char *fname, unsigned long fname_len) {
SciErr sciErr;
int intErr = 0;
int *piAddr1 = NULL;
int error;
// String holding the second argument
int iRet = 0;
char* pstData = NULL;
// Checking input argument
CheckInputArgument(pvApiCtx, 1, 2);
CheckOutputArgument(pvApiCtx, 1, 1);
// Get input image
Mat image;
retrieveImage(image, 1);
for (int i = 0; i < image.rows; i++) {
for (int j = 0; j < image.cols; j++) {
sciprint("%f ", image.at<double>(i,j));
}
sciprint("\n");
}
// Error Checks
if (image.channels() > 1) {
sciprint("The image must be grayscale.");
return 0;
}
// Output variables holding integralImage, squared integralImage, integralImage over rectangle rotated by 45 degrees
Mat new_image, integralimage, squaredimage, rotatedimage;
integral(image, integralimage, squaredimage, rotatedimage, -1);
// Get the number of input arguments
int inputarg = *getNbInputArgument(pvApiCtx);
if (inputarg == 1)
integralimage.copyTo(new_image);
if (inputarg == 2)
{
sciErr = getVarAddressFromPosition(pvApiCtx, 2, &piAddr1);
if (sciErr.iErr) {
printError(&sciErr, 0);
return 0;
}
if (isStringType(pvApiCtx, piAddr1)) {
if (isScalar(pvApiCtx, piAddr1)) {
iRet = getAllocatedSingleString(pvApiCtx, piAddr1, &pstData);
}
}
if (strcmp(pstData, "rotated") == 0) {
rotatedimage.copyTo(new_image);
} else if (strcmp(pstData, "upright") == 0) {
integralimage.copyTo(new_image);
} else {
sciprint("Unknown Parameter Name:%s\n", pstData);
}
}
// sciprint("\n");
// for (int i = 0; i < new_image.rows; i++) {
// for (int j = 0; j < new_image.cols; j++) {
// sciprint("%f ", new_image.at<double>(i,j));
// }
// sciprint("\n");
// }
// new_image is sent to scilab as output
int temp = nbInputArgument(pvApiCtx) + 1;
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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