OpenCV 图像像素运算操作

#include <opencv2/opencv.hpp>
using namespace cv;
int main() {
    Mat image = imread("image.jpg");
    if (image.empty()) {
        std::cout << "无法加载图像" << std::endl;
        return -1;
    }
    // 加法变换
    Mat addResult;
    add(image, Scalar(50, 50, 50), addResult); // 将像素值增加50
    // 减法变换
    Mat subtractResult;
    subtract(image, Scalar(50, 50, 50), subtractResult); // 将像素值减去50
    // 乘法变换
    Mat multiplyResult;
    multiply(image, Scalar(0.5, 0.5, 0.5), multiplyResult); // 将像素值乘以0.5
    // 除法变换
    Mat divideResult;
    divide(image, Scalar(2.0, 2.0, 2.0), divideResult); // 将像素值除以2.0
    imshow("Original Image", image);
    imshow("Addition Result", addResult);
    imshow("Subtraction Result", subtractResult);
    imshow("Multiplication Result", multiplyResult);
    imshow("Division Result", divideResult);
    waitKey(0);
    return 0;
}