[ITK] [ITK-dev] New Image Filter for Submission

[Matt McCormick]

Hi David,

Thanks for contributing to ITK.

It sounds like this filter does the same as the BinShrinkImageFilter?:

  http://www.insight-journal.org/browse/publication/912

Matt

On Thu, Oct 15, 2015 at 2:48 PM, David Burns <david.mo.burns at gmail.com> wrote:
> Dear Insight Developers,
>
> I have developed an image filter that may be useful to the community. Please
> let me know if you think this is the case, and I will submit it to the
> Journal.
>
> The filter produces a subsampled version of the input image, where the
> output image has the same output dimensions (Size[i]*Spacing[i]) but with
> the number of pixels (Size[i]) scaled down by a factor (factor[i]) across
> the dimensions. The pixels of the output image are an average over the input
> pixels they overlap. The filter verifies/ensures that factor[i] is an exact
> factor of the input image Size[i], so that the image properties remain
> unchanged by the filter.
>
> I found this to be useful for my registration task to produce a lower
> resolution image very quickly, without needing to use itk::
> ResampleImageFilter, interpolation or smoothing.
>
> I've attached a screenshot of an xray, subsampled / averaged by a factor of
> 4 in x and y. Let me know your thoughts?
>
> Thanks
> David Burns
>
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