Need help applying Roberts Cross operator to 2D Array

[costadali]

Hey guys Im using a txt file to store values onto array intImage[][], and I want to take that array and run it through the Roberts Cross operator:

(rc[i][j] = (| intImage[i][j] - intImage[i + 1][j + 1] | , | intImage[i + 1][j] - intImage[i][j + 1] | ))

but I keep getting an "Expected an expression" error in front of the first | keys.

any idea what I am doing wrong?

 #include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
#include <cmath>

using namespace std;

const int rows = 4,
cols = 4;

int main()
{
	
	int intImage[rows][cols],
		charImage[rows][cols],
		rc[rows][cols],
		i,
		j,
		maximum;

	ifstream infile;

	infile.open("TextFile1.txt");	//Importing TExtFile1.txt

	if (!infile)	//Checks whether or not the program can locate the file or not
	{
		cerr << "file could not be found\n";	//Displays an error message
		
		exit(1);	//Ends the program
	}

	cout << "The image before the Roberts Cross operator has been applied to it";

	for (i = 0; i < rows; i++)
	{
		for (j = 0; j < cols; j++)
		{
			infile >> intImage[i][j];
		}
	}

	for (i = 0; i < rows; i++)
	{
		for (j = 0; j < cols; j++)
		{
			cout << intImage[i][j] << " ";
		}
		cout << endl;
	}
	
	cout << "The image after the Roberts Cross operator has been applied to it";

	

		for (i = 0; i < rows; i++)
		{
			for (j = 0; j < cols; j++)
			{
				rc[i][j] = (| intImage[i][j] - intImage[i + 1][j + 1] | , | intImage[i + 1][j] - intImage[i][j + 1] | );
			}
		}

	return 0;
}

[koothkeeper]

You mean line 60? What is that you're trying to do?

[costadali]

Oh I just solved it but thank you anyway.