[Insight-users] Problems with nifti File io and vector images.

[Luke Bloy]

I've had success in writing out 3d multi-component images to nifti files
(3d images of diffusion tensors) and the nifti standard certainly
supports this. Perhaps the problem is caused by using a itkVectorImage
as opposed to an itkImage?

I've also noticed that the NiftiImageIO class implements a non-standard
format for writing out diffusionTensors. This bug i have a fix for. If
the VectorImage support is a bug I would be willing to try to tackle it
as well, with a bit of guidance :)
 
-Luke

On Wed, 2008-07-02 at 14:46 -0400, Karthik Krishnan wrote:
> Luke:
> 
> Only file formats that support 3D multi-component images can be used to 
> write out VectorImage. The file formats that do support it are 
> MetaImage, NRRD, VTK XML, and several few others.
> 
> ITK users:   Does NIFTI IO in ITK support 3 dimensional multi-component 
> images ?
> 
> If so, you might have found a bug.
> If not, sorry.. please use another file format.
> 
> Thanks
> --
> karthik
> 
> Luke Bloy wrote:
> > Hi i'm having trouble writing VectorImages to nifti files. What I'm
> > trying to do is convert a 4D analyze Image to a 3D vectorImage. I'm
> > attaching a testProgram that does this.
> >
> > It works fine if i specify the output as either .nhdr or as .mhd but if
> > i specify the output as .nii I get a 352 byte nii file. ie the
> > databuffer doesn't get written to the file? If i use the 2 file nifti
> > then I get the header and a 0 byte img file?
> >
> > any ideas?
> > -Luke
> >
> >   
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