title: How to efficiently detect the center of clusters in an image with OpenCV
body: <p>So, I'm trying to find the centers of the white clusters with OpenCV in the next frame:</p>
  
  <p><img src="https://i.stack.imgur.com/qjjVn.png" alt="*screenshot made with OpenCV imshow()*"></p>
  
  <p>I've already tried the HoughGradient function, but it's results were inconsistent, since these clusters weren't circle-like shapes in all frames. Any other suggestions?</p>