[Fwd: Re: [Insight-users] Example on morphological image enhancement]

[Lino Ramirez]

Hi Luis,

I tried to send the message below to the list but it bounced back because
of the size of the attachments. So, I decided to put the filters and tests
associated with grayscale opening and closing in this webpage

http://www.ece.ualberta.ca/~ramirez/itk/MorphologicalFiltering/

Thank you,

Lino

---------------------------- Original Message ----------------------------
Subject: Re: [Insight-users] Example on morphological image enhancement
From:    "Lino Ramirez" <ramirez at ece.ualberta.ca>
Date:    Thu, December 30, 2004 9:13 pm
To:      "Luis Ibanez" <luis.ibanez at kitware.com>
Cc:      "Lino Ramirez" <ramirez at ece.ualberta.ca>
         insight-users at itk.org
--------------------------------------------------------------------------

Hi Luis,

Here are the grayscale opening and closing filters. I also added tests for
the new filters in the files itkMathematicalMorphologyImageFilterTest.cxx
and itkBasicFiltersPrintTest.cxx. Please note that I am not using the CVS
version of ITK (I am using ITK 1.8). Therefore, the file
itkBasicFiltersPrintTest.cxx does not contain some of the tests that were
added recently. So, you may have to copy the lines I added (they are
identified in the file) and paste them in the CVS version of
itkBasicFiltersPrintTest.cxx.

Please let me know if you have any question.

Happy New Year!

Lino

>
> Hi Lino,
>
> This is great !
>
> Thanks for contributing this example to ITK.
>
> It has been committed into the directory
>
>      Insight/Examples/Filtering/
>         MorphologicalImageEnhancement.cxx
>
>
> The section between lines 170-200 can  be converted by
> creating a Functor filter. In that way there is no need
> to create the internal image.
>
> It will be great to include in the repository the Opening
> and Closing filters that you implemented. Please send them
> and we will commit them to the repository. You may want to
> add your information in the "\author" Doxygen tag of the
> respective classes.
>
>
>
> Regards,
>
>
>     Luis
>
>
> -------------------
> Lino Ramirez wrote:
>
>> Hello All,
>>
>> I wrote a small example on morphological image enhancement following an
example I found in the Image Processing toolbox of MATLAB. You can find
the example at
>>
>> http://www.ece.ualberta.ca/~ramirez/itk/ImageEnhancement/
>>
>> The executable and some example outputs using structuring elements of
different sizes can be found at
>>
>> http://www.ece.ualberta.ca/~ramirez/itk/ImageEnhancement-bin/
>>
>> The usage is
>> MorphologicalImageENhancement.exe inputImageFile outputImageFile radius
>>
>> where "radius" is the radius of an itkBinaryBallStructuringElement
>>
>> If you think it could be useful for other ITK users, I would like to
contribute it to ITK. Moreover, in writing the code, I had to implement a
>> Gray Scale Opening (erosion followed by a dilation) and Closing
(dilation followed by an erosion) (Note: they are no the geodesic ones
that are
already implemented in ITK) and a Top Hat (original image – opening) and
Bottom Hat (closing – original image) operations. If you think these
operations should be in ITK, I could try to implement them as filters.
>>
>> Any feedback about the example will be really appreciated
>>
>> Have a nice day
>>
>> Lino
>>
>> P.S. I also have available the example using the geodesic morphological
filters available in ITK
>>
>> _______________________________________________
>> Insight-users mailing list
>> Insight-users at itk.org
>> http://www.itk.org/mailman/listinfo/insight-users
>>
>>
>
>
>
>
>
>