[Insight-users] N-input filters

[Miller, James V (Research)]

There are several N-input filters.

* PasteImageFilter takes two inputs.
* JoinImageFilter takes two inputs.
* EigenAnalysis2DImageFilter takes three inputs.
* Subclasses of BinaryFunctorImageFilter take two inputs.
* Subclasses of TernaryFunctorImageFilter take three inputs.
* Subclasses of NaryFunctorImageFilter take N inputs.

The JoinImageFilter will take two inputs and produce an output
where each pixel is vector with a component from each image.
So this is pretty close to what you want.  You can either 
cascade two of these for a short putt or our can write a
TernaryJoinImageFilter using the current JoinImageFilter
as a guide.


 

> -----Original Message-----
> From: Kent Williams [mailto:kent@mail.psychiatry.uiowa.edu]
> Sent: Wednesday, April 02, 2003 9:01 AM
> To: insight-users@public.kitware.com
> Subject: [Insight-users] N-input filters
> 
> 
> Hi! I'm an insight-developer, but I'm posting to the users 
> list because I 
> think this would be of interest to insight users as well:
> 
> Are there any examples of N-input filters? i.e. ITK filters 
> that take more 
> than one input image?  The particular problem we're 
> interested in is this: We 
> need to read in 3 images, and use them to generate an image 
> where each 
> component is a 3 vector.
> 
> I've read the user manual chapters on writing filters, and 
> done some code 
> spelunking through the online Doxygen documentation, without 
> having the 
> lightbulb go off over my head.  Thanks in advance!
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