[Insight-users] Streamable image reading?
Luis Ibanez
luis.ibanez at kitware.com
Tue Jul 7 18:48:54 EDT 2009
Hi Luke,
0) The ImageIO classes that support streaming should provide the
method
GenerateStreamableReadRegionFromRequestedRegion()
1) At this point the ImageIO class that best supports Streaming are
MetaImageIO and Nifti.
2) I think (subject to verification) that Nifti is providing support
for Streaming when reading, but not when writing.
An example on how to implement Streaming (reading) ImageIO classes
is available at:
http://svn.na-mic.org/NAMICSandBox/trunk/ImageIOStreaming/
In particular, look at the directory
http://svn.na-mic.org/NAMICSandBox/trunk/ImageIOStreaming/Source/
and the YAFF format (YAFF stands for "Yet Another File Format"),
which is a toy (but functional) example of streaming.
Details are available in the technical report that you find at:
http://svn.na-mic.org/NAMICSandBox/trunk/ImageIOStreaming/Documents/TechnicalReport/
Regards,
Luis
------------------
Luke Bloy wrote:
> Hi all,
>
> I'm beginning a project were I'll have to read a large number of images
> at the same time. I believe that all the filters that I'm working on
> should be stream-able. However I'm worried about image reading.
>
> I'm not sure how to interpreter the following
> "Streaming infrastructure is already available for Reading. However only
> a couple of ImageIO classes fully implement support for this
> functionality."
> from
> http://www.vtk.org/Wiki/Proposals:Adding_Streaming_Support_in_ITK_Image_Writing
>
>
> Do we have a list of which imageIO classes have streaming support for
> reading implemented? specifically, does itkNiftiImageIO?
>
> If not is there a wiki / info / example of how to correctly implement it
> if I need to tackle this myself?
>
> Thanks,
> Luke
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