When I run the SimpleBlobDetector, it fails to detect hollow circles (like what the various parameters mean with code in both Python and C ++.
In my previous post, I described how to set up Python and OpenCV on your computer. Now I will show you how to use OpenCV's computer.
Click OpenCV blob detector to download code (C ++, Python, and example image) from GitHub. The image included in the download link can. Blob Tracking Pose Estimation Python OpenCV