[Insight-users] Passing an image to NormalizedCorrelationImageFilter::SetTemplate

[Markus Neuner]

Hi David,

You need to generate the kernel image before passing it to the operator
with:
   extractFilter->Update();
and you must generate the kernel with:
   UnsignedCharImageType::SizeType radius;
   radius[0] = 10;
   radius[1] = 10;
   kernelOperator.CreateToRadius(radius);
Then it should work.
NOTE: The radius should match your extracted image, here it is chosen to
be 10 as an example.

Attached is a working example where the VTK stuff was stripped.

Cheers, Markus

On 21.10.2010 17:56, David Doria wrote:
>
>     Yes. It uses an AnnulusOperator rather than a piece of an image.
>
>     David
>
>
> After some poking around, it looks like ImageKernelOperator is what
> should be used.
>
> However, the output of the correlation (after being rescaled to 0-255)
> is all black:
> http://www.vtk.org/Wiki/ITK/Examples/Images/NormalizedCorrelationImageFilter
>
> Any thoughts?
>
> David
>
>
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