[Insight-users] How to fill the hole in itk

[Quan]

hello everyone,
i want to fill the hole in a binary image.the binary image looks like a  CD,on which the center region are black (pixel-wise=0),how can i fill the center region.(of course my image to be processed is not a standard disk shape).
i tried itkVotingBinaryHoleFillingImageFilter,but it only fill some small hole(some neighbours),however i wanna fill a large region,does any other image filer fulfill such kind of task?
Thanks
Quan
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