title: how to refine or blur or smooth just the edges?
body: <p>Is it possible to refine or blur just the edges in an image with the white background ?
  I was thinking to get an edge mask of the image ( i already got it). After that use that mask to apply blur or smoothing function on the original image. So that only the edges will be blurred or refined. But i don't know how to achieve this.</p>
  
  <p>Thanks</p>