Circle detection with OpenCV

Question

How can I improve the performance of the following circle-detection code

from matplotlib.pyplot import imshow, scatter, show
import cv2

image = cv2.imread(\         


        

Answer 1

While it is possible to fine-tune Hough Circles for a given image, the optimal parameters from image to image may vary alot. Hence, it takes quite some effort to make the circle detection robust using Hough Circles, though its doable!

Instead I would suggest to use more modern approaches like:

• Arc Adjacency Matrix-Based Fast Ellipse Detection (https://ieeexplore.ieee.org/document/8972900). Code available: https://github.com/Li-Zhaoxi/AAMED
• Circle Detection by Arc-support Line Segments ( https://ieeexplore.ieee.org/document/8296246 ). Code available: https://github.com/AlanLuSun/Circle-detection