[Insight-users] Reading portion of the image without loading the whole image into the memory

[David Doria]

On Tue, Aug 14, 2012 at 4:59 PM, yan xu <xy198908 at gmail.com> wrote:

> Hi, all
>       I'm facing a problem to read only portion of the image to test the
> algorithm since the whole image is too big for the memory. I have tried
> using the itk pipeline through extractimage filter, but I don't think it
> works. The memory still goes larger and larger. My image type is 16bit
> nrrd. What I hope is that the only the desired region of the image is
> loaded into the memory. Is there a solution for that? Thank you!
>

I've never done it, but you could try this:

http://www.itk.org/Wiki/ITK/Examples/SimpleOperations/RequestedRegion

on your ImageReader.

David
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