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On 4/2/2012 9:32 PM, David Gobbi wrote:
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cite="mid:CANwS1=GoXJ51UgXbEVrciO=rEjEkaqYOLTWzWHBC+H9u9+OrWA@mail.gmail.com"
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<pre wrap="">On Mon, Apr 2, 2012 at 1:12 PM, Martin Dulovits
<a class="moz-txt-link-rfc2396E" href="mailto:martin.dulovits@woogieworks.at"><martin.dulovits@woogieworks.at></a> wrote:
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<pre wrap="">On 4/2/2012 8:56 PM, David Gobbi wrote:
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Hi Martin,
I think the 7x7x7 restriction is still in place. Would it be possible
for you to use vtkSeparableConvolution instead? It has no restriction
on its kernel size.
You can also look at vtkImageCorrelation.
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Its the dosimetric distribution of a radiation source. Its symetric, even
circular symmetric, but does this mean it is seperable ?
Is this 7x7x7 constraint also in ITK ?
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The 7x7x7 constraint is only in that one VTK class.
Circular symmetry is separable for a Gaussian kernel, but not for other kernels.
- David
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<br>
<font color="black"><font size="1">Thats was what I remembered from
my math courses, but I wasnt sure any more .. <br>
I guess then I will try to work in in fourier with vtk or scipy
.. <br>
Do you know is there some sample code for convolution with fft
in vtk to build upon ?<br>
<br>
thx a lot again<br>
<br>
martin<br>
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