title: How to Find Diameter of the circle
body: <p>I have an image of a circle but my circle is not perfect 
  Firstly I found transition coordinates
  <a href="https://stackoverflow.com/questions/37400390/detecting-circles-without-using-hough-circles">Detecting Circles without using Hough Circles</a>
  and than ı use this formula <a href="https://math.stackexchange.com/questions/675203/calculating-centre-of-rotation-given-point-coordinates-at-different-positions/1414344#1414344">https://math.stackexchange.com/questions/675203/calculating-centre-of-rotation-given-point-coordinates-at-different-positions/1414344#1414344</a>
  Finally ı have fourn radiuses which the longest and shortest
  Now I have this image:
  <a href="https://i.stack.imgur.com/M1gjK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/M1gjK.png" alt="enter image description here"></a></p>
  
  <p>BUt they are radius I need to find diameter How to find diameter from image??
  Or How to I can find mutual/symetric/ point in a circle </p>