[Insight-developers] concept checking in AccumulateImageFilter

[Amy Squillacote]

Hi all,

There is currently a check in the header file of the 
AccumulateImageFilter (in Code/BasicFilters) for whether the input 
and output images have the same dimension.  Another ITK developer 
pointed out to me a couple days ago that this concept check is 
probably wrong.  He suggested that the dimension of the output should 
actually be one less than that of the input.  Luis and I discussed 
this earlier today, and we believe that the output's dimension should 
be one less than that of the input.  However, if we make this change, 
anyone's code depending on the input and output to have the same 
dimensionality would break.

What has been the experience of other people using this filter?  What 
is your opinion about the dimensionality of the input and output of 
this filter?

- Amy