Hi, 

I am using DRAMMS for registration and I'm interested in evaluating the accuracy based on the deformation fields. ie. if I add the deformation field value at each pixel location, I should reach the corresponding pixel in the output image, which should be the same as the fixed image. However, the deformation field saved by DRAMMS has a very unusual format, it seems to be very sparse and pixelated. I've attached an image. This is an issue because when I deform my image points using the field, I do not reach the same warped image as DRAMMS.  

I am wondering if there is a way to format this to be more continuous. I saw there is a function called ConvertDeformation, but my installation didn't seem to produce an executable for it and I can't seem to be able to manually produce it. Any help would be greatly appreaciated.

Kind regards,

Clara