[Insight-users] Wrapping ImageToImageFilter with high-dimensional pixel type

[Tobias Maier]

Thanks Brad,

now the filter and wrapping works fine.
There is an issue with writing the VectorImage with the ImageFileWriter, 
but I'll get this working.

Regards,
Tobias


On 04/12/2012 02:55 PM, Bradley Lowekamp wrote:
> Hello,
>
> What about use a VectorImage instead of the fixed length Image of CovariantVectors.
>
> I unfortunately don't know how well VectorImages are supported in WrapITK, however it is my understanding that it should be fairly easy to extent classes instantiating cmake macros to this.
>
> Alternatively, there is SimpleITK which has chosen to support VectorImages instead of all the combinations of Images of RGB, FixArray, Vector, CovariantVector etc.
>
>
> Brad
>
> On Apr 12, 2012, at 8:34 AM, Tobias Maier wrote:
>
>> Hi all,
>>
>> I have implemented a filter to extract features on 3D images. It is a
>> ImageToImageFilter with output type itk::Image<
>> itk::CovariantVector<float, dim>, 3>. The dimension is calculated from a
>> parameter given as template parameter and usually high.
>>
>> Using this filter from C++ Code works fine, but because of the high
>> dimensions of the CovariantVector (>10) wrapping the code for python
>> requires a lot of effort to wrap the required types (Vector, FixedArray,
>> Image, ...) without wrapping everything for this long vectors.
>>
>> Using a 4D image as output would make the wrapping easy, but I do not
>> like the mixing of features and image dimensions.
>>
>> Do you know a solution that makes wrapping feasible while keeping the
>> interface clean?
>>
>> Thanks for any help you can provide.
>>
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> ========================================================
> Bradley Lowekamp
> Medical Science and Computing for
> Office of High Performance Computing and Communications
> National Library of Medicine
> blowekamp at mail.nih.gov
>
>
>
>