[Insight-users] Using itkDiscreteGaussianImageFilter while wr iting multiple outputs

[Robert Maroon]

Hi James,

I'm using version 1.6.

I'm not 100% sure what you mean when you say
instantiate a new writer - are you talking about a new
MetaImageIO writer or the regular image writer?

Thanks!

--- "Miller, James V (Research)" <millerjv@crd.ge.com>
wrote:
> What version of ITK are you using? 1.4, 1.6, CVS?
> 
> There was a bug in the MetaIO that did not allow
> writer to be re-used for a
> different file.  I think that has been fixed.
> 
> You might try instantiating a new writer for each
> file every time you call
> SetVariance on the gaussian, connect the gaussian to
> a new writer.
> 
> Jim
> 
> -----Original Message-----
> From: Robert Maroon [mailto:robertmaroon@yahoo.com]
> Sent: Friday, May 07, 2004 12:04 PM
> To: ITK
> Subject: [Insight-users] Using
> itkDiscreteGaussianImageFilter while
> writing multiple outputs
> 
> 
> Hi all,
> 
> I am having a problem using the
> itkDiscreteGaussianImageFilter in a progam where I
> am
> inputting a volume using a metaheader, and then
> using
> a while loop to:
> 
> 1) Apply a Gaussian of sigma_i to the volume.
> 2) Write it to a file where I add i to the end      
>  
>  of the file name (before the extension).
> 3) Change the sigma to sigma_i+1 using
> gaussianFilter->SetVariance(newSigma)
> 4) Repeat.
> 
> The problem is that while the raw files are being
> written out, they all have only the first sigma
> applied to them. Is there a way to update a filter
> in
> the middle of a program like I describe and make it
> update it's parameters? Thus applying the updated
> sigma to each new volume?
> 
> Also, when I write out the files, I get all the
> numbered .raw files but I only get one metaheader
> file
> pertaining to the last one written out. Is there
> anyway of making it write multiple metaheader files?
> 
> 
> For the metaheader files I am using:
> itk::MetaImageIO for the image types, and I do a 
> 
> writer->SetImageIO( metaWriter );
> 
> after I set the input of the writer.
> 
> Thanks!
> 
> 
> 
> 	
> 		
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