[Insight-users] Re: Marker controlled watershed, how to reali ze in ITK

[Miller, James V (Research)]

I believe the morphological reconstructions are related to the 
geodesic morphology algorithms.  There are a number of geodesic
morphology algorithms in ITK

itkGrayscaleConnectedClosingImageFilter.h
itkGrayscaleConnectedOpeningImageFilter.h
itkGrayscaleFillholeImageFilter.h
itkGrayscaleGeodesicDilateImageFilter.h
itkGrayscaleGeodesicErodeImageFilter.h
itkGrayscaleGrindPeakImageFilter.h
itkHConcaveImageFilter.h
itkHConvexImageFilter.h
itkHMaximaImageFilter.h
itkHMinimaImageFilter.h

Jim



-----Original Message-----
From: Quan Chen [mailto:quanchen at gmail.com]
Sent: Tuesday, November 23, 2004 6:02 PM
To: insight-users at itk.org
Cc: Luis Ibanez
Subject: [Insight-users] Re: Marker controlled watershed, how to realize
in ITK


Also, I am wondering if itk implemented the "morphological
reconstruction" algorithm.  The following example mention about it.
http://www.mathworks.com/products/demos/image/watershed/ipexwatershed.html

There is also some papers like:

Luc Vincent, "Morphological Grayscale Reconstruction in Image
Analysis: Applications and Efficient Algorithms," IEEE transactions on
Image Processing, vol 2 no. 2 1993.



On Tue, 23 Nov 2004 16:26:02 -0600, Quan Chen <quanchen at gmail.com> wrote:
> I just realized someone has already asked this question this month.
> Luis, I don't know whether you proposed would work very well.   As
> that coffee bean example shows.  The objective is to seperate each
> coffee beans from each other.
> http://cmm.ensmp.fr/~beucher/wtshed.html#examples
> 
> I belive it is an important feature for the watershed filter.  Since
> it offers more user intenvention so that it can do segmentation
> better.  If we only rely on the image itself, even with Hierarchical
> segmentation, we would still only got crappy result with watershed
> filter.
>
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