(8)修改彩色图片某通道的值

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#include<opencv2/opencv.hpp>
#include<iostream>
#include<random>


using namespace std;
using namespace cv;


int main()
{
Mat image = imread("C:\\Users\\Administrator\\Desktop\\1.jpg");
for(int i=0;i<image.rows;i++)
for (int j = 0; j < image.cols; j++)
{
image.at<Vec3b>(i, j)[2] = 0;
}


//显示结果
namedWindow("Image");
imshow("Image", image);
waitKey(0);
return 0;
}

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转载自blog.csdn.net/cup160828/article/details/81023791