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opencv-learning/basic/readpixel.cpp
2026-03-16 20:36:25 +08:00

24 lines
541 B
C++

// 读取像素
#include <opencv2/opencv.hpp>
#include <iostream>
using namespace std;
using namespace cv;
int main()
{
string image_path = "../img/1.png";
Mat image = imread(image_path);
if (image.empty())
{
cout << "错误:无法加载图像,请检查路径是否正确。" << endl;
return -1;
}
Vec3b pixel_value = image.at<Vec3b>(100, 150);
cout << "B: " << (int)pixel_value[0] << " "
<< "G: " << (int)pixel_value[1] << " "
<< "R: " << (int)pixel_value[2] << endl;
}