[Insight-developers] Advice on filter writing -- 2 arrays of images as inputs?

[Bradley Lowekamp]

Hello Kent,

	That sounds like an interesting design problem. My first thought was  
to make the custom image array a data object, but that still would not  
let you use the ImageToImage filter and would require a rewriting that  
class.
	What about considering the input two vector images? If you can  
restrict the input to scalars, then you might be able to internally  
use two ImageToVectorImageFilters?

Just a thought hope it helps,
Brad

On Oct 6, 2009, at 6:09 PM, kent williams wrote:

> I have been assigned the task of converting one of those faux-ITK  
> filters
> that people write -- you know, where they have SetInput(s), Update()  
> and
> GetOutput(s) but it's not actually a pipeline-compatible filter --  
> into an
> actual ITK filter.
>
> What's blowing my mind about it is that as it stands, it takes as  
> inputs two
> arrays of images. Not an itk::Array or itk::Vector, but a homegrown  
> array
> class.
>
> My question is this: What is the most ITK-esque way to handle two  
> sets of
> multiple image inputs?  SetNthInput seems fine for a class with only  
> one
> array of homogenous inputs, but I don't know what to do with a  
> second array.
>
>
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========================================================
Bradley Lowekamp
Lockheed Martin Contractor for
Office of High Performance Computing and Communications
National Library of Medicine
blowekamp at mail.nih.gov


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