[Insight-users] calculate the maximums of an image

[Gaëtan Lehmann]

Hi,

A perhaps easier approach is to use the  
LabelImageToShapeLabelMapFilter class, with the maximum value in the  
image.
You can then get the centroid of the label object with the maximum  
value in your image as label, without much work.

HTH,

Gaëtan


Le 12 mai 08 à 21:39, Xabier Artaechevarria Artieda a écrit :

> Hi Irene,
>
> You can use a C++ standard vector:
>
> std::vector<ImageType::IndexType> vector;
>
> You can store values in it (using push_back) and then iterate to  
> compute the center of gravity.
>
> Hope that helps :)
> Best regards,
> Xabi
>
> -- 
> Xabier Artaechevarria
> Cancer Imaging Laboratory
> Centre for Applied Medical Research
> www.cima.es
>
>
>
> Irene Gonzálvez <irenegonzalvezg at gmail.com> ha escrito:
>
>> Thanks a lot for answer, it was really helful.
>> I have another question, if inside the region I have a subregion  
>> with equal
>> values for all pixels and I would like to store these indexes in an  
>> array
>> (the idea is to calculate the pixel which has the maximum value and  
>> is in
>> the cente of that subregion ), is it possible to create an array of  
>> indexes?
>>
>> Bets regards,Saludos!
>> Irene
>> P.S. Muchas gracias, saludos desde Madrid
>>
>>
>> On Mon, May 12, 2008 at 9:50 AM, Xabier Artaechevarria Artieda <
>> xabiarta at unav.es> wrote:
>>
>>> Hi Irene,
>>>
>>> You could use ExtractImageFilter to extract the 3D images and
>>> MinimumMaximumImageCalculator to obtain the maximum. You can do  
>>> that in a
>>> loop, in which you change the extract region in the extraction  
>>> filter.
>>>
>>> Hope that helps,
>>> Xabi
>>>
>>> --
>>> Xabier Artaechevarria
>>> Cancer Imaging Laboratory
>>> Centre for Applied Medical Research
>>> www.cima.es
>>>
>>>
>>>
>>> Irene Gonzálvez García <irenegonzalvezg at gmail.com> ha escrito:
>>>
>>> Dear all,
>>> >
>>> > I would like to know if there is a method to calculate, in a 4D  
>>> image,
>>> > the maximum points in all the 3D slices.
>>> >
>>> > Best regards
>>> > Irene
>>> > _______________________________________________
>>> > Insight-users mailing list
>>> > Insight-users at itk.org
>>> > http://www.itk.org/mailman/listinfo/insight-users
>>> >
>>>
>>>
>>>
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>>
>
>
>
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-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr  http://www.mandriva.org
http://www.itk.org  http://www.clavier-dvorak.org

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