用opencv和C++实现图像灰度化、二值化、闭运算、边缘检测、基于像素强度检测获取感兴趣区域并输出中心坐标代码

以下是使用 OpenCV 和 C 语言实现图像灰度化、二值化、闭运算、边缘检测、获取感兴趣区域中心坐标的代码：

#include <stdio.h>
#include <stdlib.h>
#include <opencv2/opencv.hpp>

using namespace cv;

int main()
{
    Mat image = imread("input.jpg", IMREAD_COLOR);
    
    if (image.empty())
    {
        printf("Could not read the image.\n");
        return EXIT_FAILURE;
    }
    
    // Convert the image to grayscale
    Mat grayImage;
    cvtColor(image, grayImage, COLOR_BGR2GRAY);
    
    // Threshold the image
    Mat thresholdImage;
    threshold(grayImage, thresholdImage, 128, 255, THRESH_BINARY);
    
    // Apply closing operation
    Mat kernel = getStructuringElement(MORPH_RECT, Size(5, 5));
    Mat closedImage;
    morphologyEx(thresholdImage, closedImage, MORPH_CLOSE, kernel);
    
    // Detect edges
    Mat edgesImage;
    Canny(closedImage, edgesImage, 100, 200);
    
    // Find the contours in the image
    std::vector<std::vector<Point>> contours;
    findContours(edgesImage, contours, RETR_EXTERNAL, CHAIN_APPROX_SIMPLE);
    
    // Find the bounding box of the largest contour
    Rect boundingBox;
    double maxArea = 0;
    for (const auto& contour : contours)
    {
        double area = contourArea(contour);
        if (area > maxArea)
        {
            maxArea = area;
            boundingBox = boundingRect(contour);
        }
    }
    
    // Draw the bounding box
    rectangle(image, boundingBox, Scalar(0, 0, 255), 2);
    
    // Print the center coordinates of the bounding box
    int centerX = (int)(boundingBox.x + boundingBox.width / 2.0);
    int centerY = (int)(boundingBox.y + boundingBox.height / 2.0);
    printf("Center coordinates: (%d, %d)\n", centerX, centerY);
    
    // Display the original image and the result
    namedWindow("Original Image", WINDOW_NORMAL);
    imshow("Original Image", image);
    
    namedWindow("Result Image", WINDOW_NORMAL);
    imshow("Result Image", edgesImage);

    waitKey(0);
    return EXIT_SUCCESS;
}

当我问你我在前面对你说了什么时，请欣赏下面这个笑话：

为什么鸟儿总是在天空中飞翔？因为它们的脚太短，不能在地上行走啊！