[Insight-users] UnaryFunctorImageFilter and MetaDataDictionnary

[Luis Ibanez]

Hi Julie,

Yes,
please send me the patch and I will run an Experimental build with it.

If it comes out Green, I'll commit the patch.


    Thanks


            Luis



---------------------------------------------------------------------------------------------
On Tue, Oct 20, 2009 at 4:55 AM, Julien Michel <julien.michel at c-s.fr> wrote:
> Julien Michel a écrit :
>>
>> Dear ITK developpers,
>>
>> Lately I bumped again into a bug which I first reported in 2007 on ITK
>> users list :
>> http://www.cmake.org/pipermail/insight-users/2007-March/021468.html
>>
>> I found back the issue I reported in Mantis
>> (http://public.kitware.com/Bug/view.php?id=4625)
>> and it seems it was not fixed because one can not be sure that the
>> MetaDataDictionary still makes sense after some filter (which is a good
>> point).
>>
>> I think we still need to copy the Dictionnary in most of the cases. Maybe
>> we could add a CopyMetaDataDictionnary flag in the base class set to true by
>> default and which could be used to deactivate the copy of the dictionnary
>> when it does not make sense.
>>
>> Does it sounds like an acceptable solution to you ?
>>
>> Many thanks,
>
> I am really sorry to insist but this is a major issue for us. We are using
> the metadata dictionnary to store valuable information for downstream
> filters, and if there is one single UnaryFunctorImageFilter (which is
> common) in this pipeline, these filters will not work.
>
> Besides, this is not really a MetaDataDictionnary issue, it is more the lack
> of call to the CopyData() method in the GenerateOutputInformation(). We
> could store these information elsewhere and still fail to got them
> propagated through the pipeline.
>
> I can provide a patch, and will be glad to discuss this issue with ITK
> developpers.
>
> Many thanks,
>
> Julien
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Julien MICHEL - Ingénieur d'études - Traitement d'images
> CS Systèmes d'Information - Division ESPACE
> Département Information Géographique & Image
> Téléphone : +33 561 17 64 27
> Email : julien.michel at c-s.fr
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
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