Why this code returns Segmentation fault error?

Question

I have implemented the following code to perform filter2D on a matrix. After I compiled the program it returns Segmentation fault error. In this program, I want to assign an inp

Answer 1

According to the comments, the problem has been found! It is because of casting the Mat object to InputArray and OutputArray in filter2D function. I changed the implementation to the following program and it works.

#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"
#include 
#include 
#include 
#include 

//Picture size for input and output are the same
#define MAX1 4096

#define Pxsize MAX1
#define Pysize Pxsize

//Kernel size
#define Kxsize 9
#define Kysize Kxsize
//number of iterations
#define NUM_LOOP 10000

using namespace std;
using namespace cv;

unsigned short int A[Pxsize][Pysize];
unsigned short int B[Pxsize][Pysize];
unsigned short int K[Kxsize][Kysize];

// measuring the time
double pTime = 0, mTime = 10; // to indicate how much program time is (pTime) and how much i want to wait (mTime) 
struct timespec start;


int main(){
    //singleCore
    struct timespec tStart, tEnd;//used to record the processiing time
    double tTotal , tBest=10000;//minimum of toltal time will asign to the best time
    int w=0;

    //filter arguments
    Point anchor;
    double delta;
    int ddepth;

    //assign data between 0 and 255 to the input matrix
    int i,j;
    for (i=0; i