[Insight-users] CMake Stack size

[Luis Ibanez]

Hi Matthias,

You may want to try any of the region growing algorithms;

       ConnectedThreshold
       ConfidenceConnected
       IsolatedConnected

and follow it with the

       itkLabelStatisticsImageFilter

that will compute number of pixels inside a label.


The ShapeLabelObject and its associated filters,
as Dan pointed out, are also a good way to go.

Please note that they are now available in the
Insight/Code/Review directory.



     Luis


----------------------------------------------------------------------
On Thu, Oct 8, 2009 at 7:30 AM, Matthias Dodt
<matthias.dodt at mdc-berlin.de> wrote:
> Hi Daniel!
>
> Thanks for the advice - i know only of the non recursive scanline algorithm,
> but i would have liked to avoid re-implementing it. Ill have a look at
> itkShapeLabelObject. I need to compute although the centroid and find pixels
> which lie in a certain range of a seed, so i'll have to iterate over all
> pixels of the itkShapeLabelObject. Ill have to check how it works...
>
> Thanks so far!
>
> Greetings
>
> Mat
>
>
> Daniel Blezek schrieb:
>>
>> Hi Mat,
>>
>>  Flood fills don't have to be recursive.  It is much more efficient to
>> manage a stack (using stl::vector) of voxels than to use recursion.  Then
>> no
>> worries about stack size for recursion.
>>
>>  If you just want to figure out the area of a given object, you can use
>> the
>> itkShapeLabelObject in the Review directory.
>>
>> -dan
>>
>>
>> On 10/7/09 11:05 AM, "Matthias Dodt" <matthias.dodt at mdc-berlin.de> wrote:
>>
>>
>>>
>>> Hey Guys!
>>>
>>> I wrote a simple ITK ImageToImage filter using the floodfill algorithm
>>> and doing some more computation. Unfortunately it crashes with big
>>> images (floodfill works via recursion). Is there a way to increase the
>>> stack size in CMakeLists.txt? For now it looks as follows:
>>>
>>> PROJECT(itk_tracker_project)
>>>
>>> SET ( ITK_DIR /usr/local/lib/InsightToolkit )
>>> SET ( CMAKE_MODULE_PATH /users/mat/Documents/InsightToolkit-3.14.0/CMake
>>> )
>>>
>>> FIND_PACKAGE(ITK)
>>> IF(ITK_FOUND)
>>>  INCLUDE(${ITK_USE_FILE})
>>> ELSE(ITK_FOUND)
>>>  MESSAGE(FATAL_ERROR "Cannot build without ITK.  Please set ITK_DIR.")
>>> ENDIF(ITK_FOUND)
>>>
>>> LINK_LIBRARIES(
>>>    ITKAlgorithms ITKCommon ITKNumerics ITKIO ITKBasicFilters )
>>>
>>> SET(AutoRegistration
>>> src/main.cpp
>>> src/HuangWangLiuThinner.h
>>> src/DattaPauriThinner.h
>>> src/Skeletonizer.h
>>> )
>>>
>>> ADD_EXECUTABLE ( itk_tracker_project_main ${AutoRegistration} )
>>> INSTALL_TARGETS ( /itk_build itk_tracker_project_main  )
>>>
>>>
>>> I konw there is although a connected-components filter- but i need to
>>> know the number of pixels in a label (area) and it seems to me
>>> connectedComponents doesnt return this...
>>>
>>> Thanks!
>>>
>>> Greetings
>>>
>>> Mat
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>>
>>
>
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