title: Python OpenCV plot circles at a list of centre coordinates
body: <p>I have been able to generate a list of coordinates that i would like to use as the centres of mulltiple small circles that i would like to plot on an image.</p>
  
  <p>I am able to plot circles at individual points but have not been able to find the correct syntax for plotting circles at all of the centres. The coordinates i wish to use for the centres are stored as follows, in an array named Points which has a shape :(11844, 2)</p>
  
  <pre><code>[[  5   5]
   [  5  10]
   [  5  15]
   ..., 
   [630 460]
   [630 465]
   [630 470]]
  </code></pre>
  
  <p>I am able to plot an individual circle by using the following code:</p>
  
  <pre><code>cv2.circle(frame1,(5,5),1,(0,0,255))
  </code></pre>
  
  <p>I have tried to plot all points by using :</p>
  
  <pre><code>cv2.circle(frame1,Points[:,:],1,(0,0,255))
  </code></pre>
  
  <p>This gives back this error though:</p>
  
  <pre><code>cv2.circle(frame1,Points[:,:],1,(0,0,255))
  SystemError: new style getargs format but argument is not a tuple
  </code></pre>
  
  <p>Am i supposed to be using a loop to step through all the points and plot them one by one? If so which loop should I use? Or is there something simple that i am missing?</p>