[Insight-developers] Fully connected region growing added to ITK

[Karthik Krishnan]

Warnings fixed. Also sorry about the red discoloration on the dashboard last
night. Appears that I failed to check if the tookit builds with
ITK_USE_REVIEW off.

thx

On Mon, Feb 16, 2009 at 11:19 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> Karthik,
>
> Just a reminder to keep the dashboard clean of warnings. You should
> have received e-mails from the continuous.
>
> http://www.cdash.org/CDash/viewBuildError.php?type=1&buildid=272996
>
> Thanks,
>
> Bill
>
> On Mon, Feb 16, 2009 at 4:36 PM, Karthik Krishnan
> <karthik.krishnan at kitware.com> wrote:
> > Hello:
> >
> > Having needed it, I just added functionality for fully connected
> > region growing into ITK, based largely on contributions from
> > Tim Heibel and Martin Groher at Tech Univ Munchen. (thanks).
> >
> > New iterators have been added to the Review/ directory.
> >
> > These are :
> >   itkShapedFloodFilledFunctionConditionalConstIterator
> >   itkShapedFloodFilledImageFunctionConditionalConstIterator
> >   itkShapedFloodFilledImageFunctionConditionalIterator
> >
> > These iterators are a superset of the flood fill iterators that
> > currently exist in the toolkit, in the sense that they allow an
> > arbitrary connectivity, and not just 4  (2D), 6 (3D).
> >
> > To keep things simple, I've augmented the API of the
> > ConnectedThreshold region growing filter to support both
> > "FaceConnectivity" and "FullConnectivity".
> >
> > The default is to use what is now called "FaceConnectivity" (2*n
> > connectedness in ND). This is how the filter used to function.
> >
> > The added functionality now is that you may also set the Connectivity
> > of the filter to use "FullConnectivity", 3^n-1 in nD.
> >
> > I'm looking for :
> >
> > (a) Better nomenclature for the FaceConnectivity enum, not sure if that's
> >       the right term, in ND
> >
> > (b) API suggestions:
> >
> >     The new iterator is general enough to be able to use templates
> >     so as to obtain connectivity in between 6 and 28 connectedness.
> >     So one might envision the API growing in the form of more enums
> >     or replace that with passing in a neighborhood, which at the momemt
> >     IMHO is just a complication for the naive user.
> >
> >
> > --------
> >
> > The following classes tests were added :
> >
> > Code/Review/itkShapedFloodFilledFunctionConditionalConstIterator.h
> initial
> > revision: 1.1
> > Code/Review/itkShapedFloodFilledFunctionConditionalConstIterator.txx
> initial
> > revision: 1.1
> > Code/Review/itkShapedFloodFilledImageFunctionConditionalConstIterator.h
> > initial revision: 1.1
> > Code/Review/itkShapedFloodFilledImageFunctionConditionalConstIterator.txx
> > initial revision: 1.1
> > Code/Review/itkShapedFloodFilledImageFunctionConditionalIterator.h
> initial
> > revision: 1.1
> > Testing/Code/BasicFilters/CMakeLists.txt new revision: 1.382; previous
> > revision: 1.381
> > Testing/Code/BasicFilters/itkConnectedThresholdImageFilterTest.cxx new
> > revision: 1.14; previous revision: 1.13
> Testing/Code/Review/CMakeLists.txt
> > new revision: 1.161; previous revision: 1.160
> > Testing/Code/Review/itkReviewTests.cxx new revision: 1.96; previous
> > revision: 1.95
> > Testing/Data/Baseline/BasicFilters/ConnectedThresholdImageFilterTest2.png
> > initial revision: 1.1
> > Testing/Data/Input/8ConnectedImage.bmp initial revision: 1.1
> > Code/BasicFilters/itkConnectedThresholdImageFilter.h new revision: 1.19;
> > previous revision: 1.18
> > Code/BasicFilters/itkConnectedThresholdImageFilter.txx new revision:
> 1.28;
> > previous revision: 1.27
> >
> >
> > Based on contrib found at :
> > http://www.insight-journal.org/browse/publication/204
> >
> >
> > Thanks
> > --
> > Karthik Krishnan
> > R&D Engineer,
> > Kitware Inc.
> > Ph: 518 371 3971 x119
> > Fax: 518 371 3971
> >
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> >
>



-- 
Karthik Krishnan
R&D Engineer,
Kitware Inc.
Ph: 518 371 3971 x119
Fax: 518 371 3971
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