下面的程序为对Lena图加入椒盐噪声的代码:
#include <iostream>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/opencv.hpp>
using namespace cv;
using namespace std;
//加入椒盐噪声
void salt(Mat image, int n)
{
int i,j;
for (int k=0; k<n; k++)
{
// rand()是随机数生成器
i= rand()%image.cols;
j= rand()%image.rows;
if (image.type() == CV_8UC1)
{ // 灰度图像
image.at<uchar>(j,i)= 255;
}
else if (image.type() == CV_8UC3)
{ // 彩色图像
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( )
{
Mat image=imread("/Users/zhangxiaoyu/Desktop/lena.jpg");
if(image.empty())
{
cout<<"Error!cannot be read...../n";
return -1;
}
salt(image, 5000);
namedWindow("saltiamge