Google Lens isn't going to include a menu item for every single computer vision task with a simple specialized solution.
OpenCV provides circle detection out of the box: https://docs.opencv.org/3.4/d4/d70/tutorial_hough_circle.htm... The only part that's somewhat difficult is tuning the parameters correctly. I've found setting all thresholds very low (generating lots of false positives) and then culling overlap to work very well when I had to count individual atoms in electron microscopy images a few years ago.
OpenCV provides circle detection out of the box: https://docs.opencv.org/3.4/d4/d70/tutorial_hough_circle.htm... The only part that's somewhat difficult is tuning the parameters correctly. I've found setting all thresholds very low (generating lots of false positives) and then culling overlap to work very well when I had to count individual atoms in electron microscopy images a few years ago.