[Insight-developers] imageToImageFilter exception

[Nicholas Tustison]

Hello,

I'm aware of the recent verification that input images occupy the same physical 
space for derivative classes of the ImageToImageFilter.  Although I can see 
where it should be the default behavior, it doesn't seem like it should be a 
universal requirement for all cases.   Specifically, for the 
itkHistogramMatchingImageFilter, it seems to me that this physical 
space requirement is not relevant if all I want to do is make sure that the 
intensity histograms between two images match.   Is there a way to write 
an explicit exemption for certain cases, i.e. something in the constructor 
like

this->SetRequiredNumberOfInputs( 2 );
this->SetInputVerification( false );

Thanks,
Nick