<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hi all,</div><div><br></div><div>I recently obtained a deformation field by elastic registration, then calculated its divergence. What I am trying to do now is to show the divergence on the original image. I want to change the divergence for RGB. I tried "grayscale to RGB filter", but the result is all black. <br></div><div><br></div><div>The attachment is the divergence. Is there any suggestion for how to do it? And, is there any way to calculate strain of this deformation field in ITK?<br></div><div><br></div><div>Many thanks in advance. <br></div><div><br></div><div>Regards,</div><div>Abayiz </div></div></body></html>