[Insight-users] WG: Abnormal termination error with erotion filter!!!

[Joshua Cates]

Instead of Update(), try calling UpdateLargestPossibleRegion().

Josh.

______________________________
 Josh Cates			
 School of Computer Science	
 University of Utah
 Email: cates at sci . utah . edu
 Phone: (801) 587-7697
 URL:   http://www . sci . utah . edu/~cates


On Fri, 30 May 2003, salah wrote:

> I am almost sure, it is a bug in the erosion filter.
> 
> It works fine many times as long as you feed it
> with images of the same dimensions. It will terminate
> the program abnormally if you re-run it with an image
> of new dimensions.
> 
> Could anybody please verify this...
> Zein
> 
> >  -----Ursprüngliche Nachricht-----
> > Von: 	salah  
> > Gesendet:	Freitag, 30. Mai 2003 16:34
> > An:	'Insight-users at public . kitware . com'
> > Cc:	'luis . ibanez at kitware . com'
> > Betreff:	WG: Abnormal termination error with erotion filter!!!
> > 
> > 
> > 
> > Hello all,
> > 
> > I am using the GrayscaleFunctionErodeImageFilter. 
> > exactly as show in this piece of code
> > ========================================================
> > //  this piece is in the header file of my class
> >    typedef itk::GrayscaleFunctionErodeImageFilter<InputImageType,
> >                                    ImageType, KernelType>   InputErotionFilterType;
> >    InputErotionFilterType::Pointer                         m_Eroder; 
> > 
> > // in the constructor of my class 
> >   m_Eroder = InputErotionFilterType::New();   
> >    
> > // in the erosion method of my class
> >    KernelType::SizeType ballSize;
> >    KernelType ball;                    // Structuring element
> >    ballSize[0] = rad;      ballSize[1] = rad;      ballSize[2] = rad;
> >    ball.SetRadius(ballSize);
> >    ball.CreateStructuringElement();
> > 
> >    m_Eroder->SetInput( m_InputImage );
> >    m_Eroder->SetKernel( ball );
> >    m_Eroder->Update();
> >    m_ErodedImage = m_Eroder->GetOutput();
> > ======================================================
> > 
> > There is one instant of the erosion filter (m_Eroder) in my
> > appliation. It is created in the constractor of the base class
> > of my application. The erosion method is called by pressing
> > a button in the UI.
> > 
> > I have the following problem with this combination:
> > 
> > The erosion filter works fine when I call it for the first time.
> > It also works fine if I change the radius of the structuring
> > element and re-run the filter on the same image. Moreover,
> > it works fine if feed it with a new input image of the same 
> > dimensions of the first image. BUT, if I feed it with an image
> > of some new different dimensions. The program exits with
> > an abnormal termination error message!!!!!
> > 
> > I tried to trace the program. It crashes exactly at the 
> > m_Eroder->Update();
> > statement....
> > 
> > Did anybody have such a problem?? Could anybody please
> > guess what it could be?? 
> > 
> > I think the problem COULD be solved if there WERE some way
> > to "RESET" the instance of the filter, of cource without deleting
> > it or re-calling ::New();
> > 
> > 
> > Thanks a lot ,,,,
> > 
> > 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 75465 (GRIS),           Fax: (07071) 29 54 66
> > 
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