[人工智能]opencv学习 - 添加椒盐噪声（2021.08.26）

#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <iostream>
#include <cstdlib>
#include <stdio.h>

using namespace std;
using namespace cv;

Mat FuncSaltNoise(const Mat srcImg, int NoiseValue);//添加椒盐噪声

int main(int argc, char** argv)
{
	Mat srcImg = imread("1.jpg"); 
	Mat DstImg = Mat::zeros(srcImg.cols, srcImg.rows, srcImg.type());
	Mat result;

	DstImg = FuncSaltNoise(srcImg,10000);
	hconcat(srcImg, DstImg, result);
	imshow("图像对比显示", result);
	
	waitKey(0);
	return 0;
}

/* --------------------------------------------------------------------------
		添加椒盐噪声
   --------------------------------------------------------------------------*/
Mat FuncSaltNoise(const Mat srcImg, int NoiseValue) 
{
	Mat resultImage = srcImg.clone();
	for (int k = 0; k < NoiseValue; k++)//添加NoiseValue个噪声点
	{
		int i = rand() % resultImage.cols;
		int j = rand() % resultImage.rows;
		if (resultImage.channels() == 1)
		{
			resultImage.at<uchar>(j,i) = 255;
		}
		else 
		{
			resultImage.at<Vec3b>(j, i)[0] = 255;
			resultImage.at<Vec3b>(j, i)[1] = 255;
			resultImage.at<Vec3b>(j, i)[2] = 255; 
		}
	}
	return resultImage;
}

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