[Insight-users] [vtkusers] calculation a few pixels derivative

[tony hakki]

itk::CentralDifferenceImageFunction  That function is almost what I am looking for but unfortunately it is used for images which are 2 dimension. Does anybody know any class  like that which is used  for 3 dimension images.  
itk::CentralDifferenceImageFunction allow users to compute the derivative at specified physical or pixel locations.
thanks 
Tony


----- Original Message ----
From: tony hakki <tony2007vtk at yahoo.com>
To: VTK Ortak mail hesabi <vtkusers at vtk.org>
Sent: Wednesday, March 7, 2007 2:45:22 PM
Subject: [vtkusers] calculation a few pixels derivative


hello all;
I got a few pixel values through a normal vector and then I would like to calculate these values derivatives to get maximum gradient magnitude of them. Is there any class for this or ,should I calculate it just my self?
Does anybody have any knowledge about that?
Thanks 
Tony



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