[Insight-users] CovariantVectorImageExtractComponent

[Luis Ibanez]

Hi Jesse,

What is the actual pixel type of your input image
VectorDeformationField.mhd  ?


Note that this example is reading the image as Float,
and then reducing it to unsigned short.


Please post to the list the content of the MetaImage
header file

            VectorDeformationField.mhd


That will help us to check if the image dimensions
in the header are what you expect.


Thanks


    Luis



--------------
Jesse wrote:
> Hi Luis,
>  
> I got the new version and tested it.
>  
> VectorDeformationField is about 81M , which include three 
> component,   That is, each component should contain 27M,  In line 71, I 
> modify it const   unsigned int          Dimension = 3;  But after run
> CovariantVectorImageExtractComponent VectorDeformationField .mhd 11.mhd 
> 22.mhd 1, the reult image is all zero,  in fact the component wasn't 
> zeros. in addition 11.mhd is 64K,  22.mhd 32k.
>  
> Regards
>  
> Jesse
> */Luis Ibanez <luis.ibanez at kitware.com>/* wrote:
> 
> 
>     Hi Jesse,
> 
>     Thanks for pointing this out.
> 
>     We just commited a fix for this file in to the CVS repository.
> 
>     http://www.itk.org/cgi-bin/viewcvs.cgi/Examples/IO/CovariantVectorImageExtractComponent.cxx?root=Insight&r1=1.7&r2=1.8
> 
>     Please give it a try and let us know if you find any problem,
> 
> 
>     Thanks
> 
> 
>     Luis
> 
> 
> 
>     ---------------
>     Jesse wrote:
> 
>      > Hi all
>      >
>      > I found a question in CovariantVectorImageExtractComponent.cxx,
>     There
>      > wasn't argv[2] in it. That is we can't get the non-normalized
>     output.
>      > Also, when i want to get the second component using ,
>      >
>      > CovariantVectorImageExtractComponent sr.mhd 11.mhd 22.mhd 2
>      >
>      > the reult image is all zero, infact the component wasn't zeros.
>      >
>      > Best
>      >
>      > Jesse
>      >
>      >
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