<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello everyone,</div><div><br data-mce-bogus="1"></div><div>I want to apply Demons Registration to register two medical images, the image information is strong at the center, therefore I want to apply registration method on only the center region of the images. For example, take a center region of moving image, and find the corresponding positions of each pixel of the region in the fixed image. However, I can not find a method that allows processing on a region like that in itkDemonsRegistrationFilter.h. I tried passing the full fixed image as SetFixedImage, and only the center region of moving image as SetMovingImage. However, it crashes because it requires same size of fixed image and moving image. </div><div><br data-mce-bogus="1"></div><div>Does anyone have any idea of how to pass a region to demons registration filter?</div><div><br data-mce-bogus="1"></div><div>Thank you in advance! </div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div></div></body></html>