title: how to detect circle in binary image RGB?
body: <p>I have the following image: </p>
  
  <p><a href="https://www.upsieutoc.com/images/2014/10/18/binkq27dd30.png" rel="nofollow">https://www.upsieutoc.com/images/2014/10/18/binkq27dd30.png</a></p>
  
  <p>I want to count how many circles in my images. My image is nxn 8-bit binary image, not 0 and 1.
  So, what can I do ?
  Thank you for reading !</p>