opencv关于椭圆检测

最新推荐文章于 2025-11-02 15:35:55 发布

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最新推荐文章于 2025-11-02 15:35:55 发布 · 2.7k 阅读

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#opencv

本文介绍了两种使用OpenCV进行椭圆检测的方法，包括相关算法和步骤，帮助理解如何在计算机视觉项目中检测椭圆形物体。

第一种：

#include "opencv2/imgproc.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui.hpp"
#include <iostream>
using namespace cv;
using namespace std;

int sliderPos = 70;
Mat image;
void processImage(int, void*);
int main( int argc, char** argv )
{

    image = imread("C:\\Users\\Administrator\\Desktop\\20140528\\129.bmp", 0);
    if( image.empty() )
    {
        cout << "Couldn't open image "  << "\n";
        return 0;
    }

    namedWindow("result", 1);
    // Create toolbars. HighGUI use.
    createTrackbar( "threshold", "result", &sliderPos, 255, processImage );
    processImage(0, 0);
    // Wait for a key stroke; the same function arranges events processing
    waitKey();
    return 0;
}
// Define trackbar callback functon. This function find contours,
// draw it and approximate it by ellipses.
void processImage(int /*h*/, void*)
{
    vector<vector<Point> > contours;