在不使用Hough变换的情况下在图像中查找圆圈 [英] Find circles in image without using Hough transform

问题描述

我想找到下图中的圆圈。我尝试使用OpenCV的

I want to find the circles in the below image.I tried using OpenCV's Hough circle detection but it is not giving the proper results.

Is there any other way to find circles?

Here is sample code

vector<Vec3f> circles;
Mat src_gray,te; 
cvtColor(tImg, src_gray, CV_BGR2GRAY);
GaussianBlur(src_gray, src_gray, Size(9, 9), 2, 2);
Canny(src_gray, te, 40, 240, 3);
/// Apply the Hough Transform to find the circles 
HoughCircles(te, circles, CV_HOUGH_GRADIENT, 1, te.rows / 10, 120, 9, 5, 25); 

解决方案

Take contour,
1. find the centroid of the contour
2. find distance from the centroid to each contour pixels.
3. if this distance is almost same then it will be a circle.

See This link

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