[MINC-development] large attributes in MINC2 and upgrading to HDF5 version 1.8

[Vladimir S. FONOV]

Hello,

you will have to compile latest version of libminc and then specify 
ITK_USE_SYSTEM_MINC and LIBMINC_DIR when building ITK.

I can also try to include this version of libminc in next release of ITK 
,if nobody objects.

On 13-11-27 01:15 PM, Soren Christensen wrote:
> Hi Vladimir,
>   That sounds great. I've had that problem too. What is the easiest way
> to propagate your changes to ITK?  Is it to somehow merge locally with
> the ITK release branch or is there a better way?
>
> Thanks
> Soren
>
>
> On Wed, Nov 27, 2013 at 10:07 AM, Vladimir S. FONOV
> <vladimir.fonov at gmail.com <mailto:vladimir.fonov at gmail.com>> wrote:
>
>     Hello Everybody,
>
>     I came across a problem in MINC2 , that total size of attributes for
>     group was limited to 64k , which was creating problems in storing
>     some dicom tags, for example dicom_0x0029:el_0x1020 is sometimes
>     quite big, so together with other tags it would overfill 64k limit
>     and cause problems.
>
>     The problem didn't happen with MINC1 which didn't seem to have this
>     limitation.
>
>     The solution for this problem is explained in
>     http://www.hdfgroup.org/HDF5/__doc/UG/13_Attributes.html
>     <http://www.hdfgroup.org/HDF5/doc/UG/13_Attributes.html> , see
>     "Large Attributes Stored in Dense Attribute Storage ". Unfortunately
>     it creates a minc file which requires one to use HDF5 version 1.8 ,
>     so potentially files with such large attributes will not be readable
>     by minc compiled with HDF5 version 1.6 ( minc 2.0, I suppose).
>
>     I made changes and also created a couple of new test cases in
>     HDF5_large_attribute  branch of libminc:
>     https://github.com/BIC-MNI/__libminc/tree/HDF5_large___attribute
>     <https://github.com/BIC-MNI/libminc/tree/HDF5_large_attribute>
>
>
>     Unless there are some objections, I will merge it into the develop
>     branch of libminc (which is supposed to become libminc release
>     2.3.00 sometime soon).
>
>     --
>     Best regards,
>
>       Vladimir S. FONOV ~ vladimir.fonov <at> gmail.com <http://gmail.com>
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>
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-- 
Best regards,

  Vladimir S. FONOV ~ vladimir.fonov <at> gmail.com