[Insight-users] DiscreteGausianImageFilter

[Luis Ibanez]

Hi Zein,

It depends on your image,...

but

Sigmas of 1,2,3,4 are typical values,
that means Variances of  1,4,9,16

After that, a lot of image information
is lost.

The larger the sigma (variance) the
larger the kernel will be and hence
the longer the computation time.
The MaxKernelWidth sets a cap to the
kernel size used by the filter.

You may want to keep the kernel width
below "10", unless you plan to go for
lunch an leave your program computing
the Gaussian filtering in the meantime  :-)



Regards,


    Luis


---------------
salah wrote:
> Hello all,
> 
> what are good parameter values to blure an image with 
> the DiscreteGausianImageFilter??
> 
>        m_Smoother->SetVariance( ??? );
>        m_Smoother->SetMaximumKernelWidth( ??? );
> 
> thanks,
> Zein
> 
> 
> 
> ->8<------------->8<------------->8<------------->8<------------->8<------------->8<-
> Zein I. Salah 
> University of Tübingen, WSI-GRIS, Sand 14, 72076 Tübingen 
> Email: salah at gris . uni-tuebingen . de
> Tel.: (07071) 29 75464 (GRIS),           Fax: (07071) 29 54 66
> 
> 
> 
> 
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