[Insight-users] 3D convolution with custom matrix

[Cory Quammen]

On Mon, Sep 12, 2011 at 9:45 AM, Jothy <jothybasu at gmail.com> wrote:
> I am using itk 3.2 and I could not find this header in ITK. Is it available
> only in ITK?

3.2 or 3.20? It's probably not in 3.2, and in 3.20 it would be in the
Review, which you'll need to enable in CMake for the header to be
found.

> Also is it possible to downlad the fft based filter from git?

It isn't there yet. I'm hoping by next week.

Cory

>
> Thanks
>
> Jothy
>
>
> On Mon, Sep 12, 2011 at 2:35 PM, Cory Quammen <cquammen at cs.unc.edu> wrote:
>>
>> Jothy,
>>
>> ConvolutionImageFilter should handle 3D convolutions just fine. If you
>> encounter an error, please let me know. Also, if there is some
>> documentation that led you to conclude that the filter doesn't work
>> for 3D, please let me know so I can clarify it.
>>
>> Be warned that ConvolutionImageFilter operates in the spatial domain,
>> so if your kernel is large, it will be quite slow. There will be a
>> FFT-based convolution filter in ITK v4 that will be much faster for
>> large kernels.
>>
>> Thanks,
>> Cory
>>
>> On Mon, Sep 12, 2011 at 9:09 AM, Jothy <jothybasu at gmail.com> wrote:
>> > Hi all,
>> >
>> > Is it possible to do a 3D convolution in ITK with a custom matrix? I
>> > looked
>> > at ConvolutionImageFilter by it doesn't seem to handle 3D kernels.
>> >
>> > Any suggestions?
>> >
>> > Thanks
>> >
>> > Jothy
>> >
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>>
>>
>>
>> --
>> Cory Quammen
>> Research Associate
>> Department of Computer Science
>> The University of North Carolina at Chapel Hill
>
>



-- 
Cory Quammen
Research Associate
Department of Computer Science
The University of North Carolina at Chapel Hill