The below code was written to add salt and peper effect to an image. But it doesnt do anything when i execute it. I executed this code in terminal of ubuntu. It doesnt show any error during compile time or run time. but when i execute , it just doesnt do anything and simply goes to next line of command line.

include "opencv2/core/core_c.h"

include "opencv2/core/core.hpp"

include "opencv2/highgui/highgui_c.h"

include "opencv2/highgui/highgui.hpp"

void salt(cv::Mat &image, int n) { for (int k=0; k<n; k++)="" {="" int="" i="rand()%image.cols;" int="" j="rand()%image.rows;" if="" (image.channels()="=" 1)="" {="" gray-level="" image="" image.at<uchar="">(j,i)= 255; } else if (image.channels() == 3) { // color image image.at<cv::vec3b>(j,i)[0]= 255; image.at<cv::vec3b>(j,i)[1]= 255; image.at<cv::vec3b>(j,i)[2]= 255; } } }

int main() {

// open the image
cv::Mat image= cv::imread("boldt.jpg");

cv::namedWindow("Source");

cv::imshow("Source",image);// call function to add noise

salt(image,30000);

// display image
cv::namedWindow("Image");

cv::imshow("Image",image);

return(0);

}

The below code was written to add salt and peper effect to an image. But it doesnt do anything when i execute it. I executed this code in terminal of ubuntu. It doesnt show any error during compile time or run time. but when i execute , it just doesnt do anything and simply goes to next line of command line.

include "opencv2/core/core_c.h"

include "opencv2/core/core.hpp"

include "opencv2/highgui/highgui_c.h"

include "opencv2/highgui/highgui.hpp"

void salt(cv::Mat &image, int n) { {

for (int k=0; k<n; k++)="" {="" int="" i="rand()%image.cols;" int="" j="rand()%image.rows;" if="" (image.channels()="=" 1)="" {="" gray-level="" image="" image.at<uchar="">(j,i)= 255;
    k++) {

    int i= rand()%image.cols;

    int j= rand()%image.rows;

    if (image.channels() == 1) {

// gray-level image

            image.at<uchar>(j,i)= 255;

    } else if (image.channels() == 3) { // color image
                image.at<cv::vec3b>(j,i)[0]= 255;
                image.at<cv::vec3b>(j,i)[1]= 255;
                image.at<cv::vec3b>(j,i)[2]= 255;
            }
        }
    }

        image.at<cv::Vec3b>(j,i)[0]= 255;

            image.at<cv::Vec3b>(j,i)[1]= 255;

            image.at<cv::Vec3b>(j,i)[2]= 255;


        }

    }
}

int main() {

// open the image
cv::Mat image= cv::imread("boldt.jpg");

cv::namedWindow("Source");

cv::imshow("Source",image);// call function to add noise

salt(image,30000);

// display image
cv::namedWindow("Image");

cv::imshow("Image",image);

return(0);

}

The below code was written to add salt and peper effect to an image. But it doesnt do anything when i execute it. I executed this code in terminal of ubuntu. It doesnt show any error during compile time or run time. but when i execute , it just doesnt do anything and simply goes to next line of command line.

#include "opencv2/core/core_c.h"
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui_c.h"
#include "opencv2/highgui/highgui.hpp"


void salt(cv::Mat &image, int n) {
 
{
for (int k=0; k<n; k++) {
 int i= rand()%image.cols;
 int j= rand()%image.rows;
  if (image.channels() == 1) {
 
{
// gray-level image
 
image
 image.at<uchar>(j,i)= 255;
  } else if (image.channels() == 3) { // color image
 image.at<cv::Vec3b>(j,i)[0]= 255;
 image.at<cv::Vec3b>(j,i)[1]= 255;
 image.at<cv::Vec3b>(j,i)[2]= 255;
 }
 }
 }
 
 int main() {
 
{
// open the image
 cv::Mat image= cv::imread("boldt.jpg");
 cv::namedWindow("Source");
 cv::imshow("Source",image);// call function to add noise
 salt(image,30000);
 // display image
 cv::namedWindow("Image");
 cv::imshow("Image",image);
 return(0);
 }