[Insight-users] (no subject)

[Sergio Vera]

Hi Daniela.

Matlab and ITK are completely different environments... it may take a while
to adapt.

To substract 0.5 to a image you can use the following filter:
itk::AddConstantToImageFilter

to perform the comparation between the images you can use
itk::DifferenceImageFilter

regards


On Fri, Aug 6, 2010 at 10:40 AM, Daniela Sacchetto <danysunflower at hotmail.it
> wrote:

>  Hi everyone,
> I'm working in itk and I have a problem.
>
> I have to do this operation :
> -----------------------------------------------------------------
> if (Daverage < (D - 0.5))        (*)
>       Dfinal=1
> else
>      Dfinal=0
> -----------------------------------------------------------------
> where:
>
> D= is a DistanceMap obtained with itkDanielssonDistanceMapImageFilter;
> Daverage = is D filtered with  itkDiscreteGaussianImageFilter;
>
> Dfinal = is a 3D map where pixel are black or white depending from (*).
>
> I'm trying to do it but I have several problems with operations/comparisons
> between images... Could anyone help me?
>
> For example in Matlab I can simply do:
>  D - 0.5
> to substract 0.5 to every pixel of my image... I tryed to do the same in
> itk but it doesn't run...
>
> Thanks all for help
> Daniela
>
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-- 
Sergio Vera

 Alma IT Systems
 C/ Vilana, 4B, 4º 1ª
 08022 Barcelona
 T. (+34) 932 380 592
 www.alma3d.com
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