[Insight-users] about the image border when using ResampleImageFilter

[Jun Xiong]

 Hi all,
  I have a question about the image border interpolation question when using
ResampleImageFilter.  If i use itk::ResampleImageFilter to resample an
image to a bigger size, the area around the image border (about half
of the Spacing value), are NOT interpolated and as a result the
borders are fade to the default pixel value of the resampling filter.
For example, if i resample a  slice(256*256) from the
volume(size:128*128*64) in the x-z orientation(using the same
spacing), the result image only contains 126 line effective data in
the middle, others are default value.  It seems that, the outer half
of the image border are not interpolated and their values were set as
the default value directly.
  If i use the PadImageFilter to pad the volume with one pixel, the
result image contains 130 lines effective data. How can i get a result
image containing 128 lines.
 Thank you very much!

 Best regards!

Jun Xiong