[Insight-users] ResampleImageFilter for itk::VectorImage?

[Cory Quammen]

How about replacing line 161 itkVectorResampleImageFilter.txx with

const unsigned int numberOfComponents =
inputPtr->GetNumberOfComponentsPerPixel();

?

On Thu, Jul 7, 2011 at 3:52 PM, robert tamburo <robert.tamburo at gmail.com> wrote:
> A possible workaround if your application permits:
> Use an image of itk::Vector's. Vector has GetNumberOfComponents().
> Array and VariableLengthVector have GetNumberOfElements() but
> not GetNumberOfComponents()
> No such Get function exists for FixedArray, but GetNumberOfComponents() is
> defined in RGBPixel
> Is there a conceptual difference between GetNumberOfComponents() and
> GetNumberOfElements()?
> A possible solution:
> Fix VariableLengthVector to interface correctly
> with VectorResampleImageFilter (and potentially other Vector*Filters) by
> renaming GetNumberOfElements to GetNumberOfComponents() and changing
> const unsigned int numberOfComponents = PixelType::GetNumberOfComponents();
> to
> unsigned int numberOfComponents = PixelType::GetNumberOfComponents();
> On Thu, Jul 7, 2011 at 3:40 PM, David Doria <daviddoria at gmail.com> wrote:
>>
>> On Thu, Jul 7, 2011 at 3:34 PM, Cory Quammen <cquammen at cs.unc.edu> wrote:
>> > David,
>> >
>> > Perhaps you want to add a method GetNumberOfComponents() to
>> > VariableLengthVector and see if it works. If it does, this seems like
>> > a good addition to make.
>> >
>> > Thanks,
>> > Cory
>>
>> The problem is that the length of a VariableLengthVector is a member:
>>
>>  inline unsigned int GetNumberOfElements(void) const
>>  { return m_NumElements; }
>>
>> versus the CovariantVector which has a static function that is called
>> from the VectorResampleImageFilter (the error is "cannot call member
>> function without object):
>>
>>  const unsigned int numberOfComponents =
>> PixelType::GetNumberOfComponents();
>>
>> There is also the ::Dimension variable:
>>
>>  itkStaticConstMacro(Dimension, unsigned int,
>>                      TInputImage::PixelType::Dimension);
>>
>> that is not a member.
>>
>> Is there an easy fix?
>>
>> David
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>



-- 
Cory Quammen
Research Associate
Department of Computer Science
University of North Carolina at Chapel Hill
http://www.cs.unc.edu/~cquammen