[Insight-users] itkGaussianOperator and a warning message

[Luis Ibanez]

Hi Mauro



                  Two options:


A) The right thing to do:

        a) Increase your MaximumKernelWidth or
        b) Increase your Error tolernace or
        c) Reduce your variance


     Until the combination matches the class
     criteria.




B) The wrong thing to do:

            "Kill the Messenger"


    That is, turn off the error message, hope that
    everything will go well, and that nobody will
    die as a consequence.

    You can turn off the message by any of the
    following two methods:


         a) in the itkGaussianOperator call the
            method:

             ->SetGlobalWarningDisplay(false);


         or


         b) Connect a FileOutputWindow and send the
            messages to "/dev/null"

            you can do this with the following code

           #include "itkFileOutputWindow.h"

           itk::FileOutputWindow::Point window =
                       itk::FileOutputWindow::New()

           itk::OutputWindow::SetInstance( window );

           window->SetFileName("/dev/null");



Of course,
We strongly encourage you to do the right thing: (A)   :-)


That warning that you are getting is not just an annoyance...

It is telling you that you are doing something wrong,
because the kernel that you compute is not a proper
approximation of a Gaussian.




     Regards,



         Luis


---------------------
mauro maiorca wrote:
> Hi all,
> 
> do you know how to get rid of the warning:
> "itkGaussianOperator (0x85ace78): Kernel size has exceeded the
> specified maximum width of 15 and has been truncated to 16 elements.
> You can raise the maximum width using the SetMaximumKernelWidth
> method."?
> 
> I don't want to change the SetMaximumKernelWidth and the warning
> message all the time and it is quite annoying!
> Do you know any elegant solution for this?
> 
> cheers,
> Mauro
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