[Insight-developers] Nrrd ITK-SCIFIO Bug

[Matt McCormick]

Hi guys,

Some additional thoughts -- as Curtis points out, if the Size of the
3D images from different time points is not the same, a 4D VectorImage
will not work well.  In ITKv4, a new set of classes [1] was added to
handle time explicitly.  However, it has its own IO framework [2], so
it may take some thought on how ITK-SCIFIO could mesh with this
cleanly.

Thanks,
Matt

[1] http://www.itk.org/Doxygen/html/group__Group-Video.html
[2] http://www.itk.org/Doxygen/html/group__ITKVideoIO.html

On Tue, Jul 2, 2013 at 7:10 PM, Curtis Rueden <ctrueden at wisc.edu> wrote:
> Hi Kedar,
>
> Thanks for exercising the new code! I have a question, and a request. First,
> the latter: we just created a new SCIFIO mailing list (CCed). Can we please
> discuss these technical issues on the public list from now on?
>
> And my question: can you describe your need for the Vector image type in a
> little more detail? From my (limited) perspective,  using an ITK vector
> image type to represent multiple N-D Image blocks, which may have differing
> dimensional extents, is fundamentally unworkable. Is there another way to
> accomplish your goals?
>
> Regards,
> Curtis
>
> P.S. I spoke with Mark this morning about a possible alternative approach
> for requesting specific Images (i.e. "series") from the SCIFIO ImageIO:
> encode it in the file path string somehow.
>
> On Jul 2, 2013 1:24 PM, "Kedar Grama" <gbkedar at gmail.com> wrote:
>>
>> Hi Mark,
>>
>> Thanks for working on the vector image support through SCIFIO. I have
>> shared a nrrd file with you on google docs. When I read it with the
>> ITK-SCIFIO reader it switches the bit ordering LittleEndian/BigEndian
>> whereas if I read it in Fiji or build ITK without SCIFIO it is read
>> properly. To test this you can use the ITK reader example and write the
>> image out as a tiff while building with/without SCIFIO.
>>
>> Thanks,
>>
>> -Kedar