[vtkusers] Gaussian kernel

[Michnay Balázs]

Dear VTK Users,

I'd like to use vtkImageGaussianSmooth class to convolve my 8-bit gray-
scale image with the Gaussian kernel.
Of course, I managed to use the filter and convolution works just fine, I 
only want to know how to set the size of the Gaussian kernel.
I found a method which affects the behavior of the filter:

SetStandardDeviation();

Incrementing the parameter of this method (I tried 1.0 .. 6.0) looks like 
using bigger Gaussian kernels.
How do I know whether a specific value passed to this method results 
in using which Gaussian kernel?
I could not find a method like

SetKernelSizeTo3x3()

or

SetKernelSizeTo5x5()

Is there a way to know which kernel this filter uses and how to set the 
size of kernel? (I have to convolve the image with Gaussian kernels of 
the size of 3x3, 5x5, 7x7, etc...)

Thanks a lot,

  Michnay

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